vim: src/undo.c annotate

annotate src/undo.c @ 3147:7ba2f171cdac v7.3.344

updated for version 7.3.344 Problem: Problem with GUI startup related to XInitThreads. Solution: Use read() and write() instead of fputs() and fread(). (James Vega)

author	Bram Moolenaar <bram@vim.org>
date	Thu, 20 Oct 2011 21:28:01 +0200
parents	26fb122355d4
children	972bd3fca556

rev	line source
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1 /* vi:set ts=8 sts=4 sw=4:
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2 *
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3 * VIM - Vi IMproved by Bram Moolenaar
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	4 *
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	5 * Do ":help uganda" in Vim to read copying and usage conditions.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	6 * Do ":help credits" in Vim to see a list of people who contributed.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	7 * See README.txt for an overview of the Vim source code.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	8 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	9
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	10 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	11 * undo.c: multi level undo facility
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	12 *
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	13 * The saved lines are stored in a list of lists (one for each buffer):
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	14 *
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	15 * b_u_oldhead------------------------------------------------+
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	16 * \|
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	17 * V
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	18 * +--------------+ +--------------+ +--------------+
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	19 * b_u_newhead--->\| u_header \| \| u_header \| \| u_header \|
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	20 * \| uh_next------>\| uh_next------>\| uh_next---->NULL
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	21 * NULL<--------uh_prev \|<---------uh_prev \|<---------uh_prev \|
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	22 * \| uh_entry \| \| uh_entry \| \| uh_entry \|
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	23 * +--------\|-----+ +--------\|-----+ +--------\|-----+
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	24 * \| \| \|
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	25 * V V V
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	26 * +--------------+ +--------------+ +--------------+
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	27 * \| u_entry \| \| u_entry \| \| u_entry \|
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	28 * \| ue_next \| \| ue_next \| \| ue_next \|
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	29 * +--------\|-----+ +--------\|-----+ +--------\|-----+
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	30 * \| \| \|
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	31 * V V V
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	32 * +--------------+ NULL NULL
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	33 * \| u_entry \|
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	34 * \| ue_next \|
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	35 * +--------\|-----+
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	36 * \|
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	37 * V
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	38 * etc.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	39 *
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	40 * Each u_entry list contains the information for one undo or redo.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	41 * curbuf->b_u_curhead points to the header of the last undo (the next redo),
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	42 * or is NULL if nothing has been undone (end of the branch).
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	43 *
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	44 * For keeping alternate undo/redo branches the uh_alt field is used. Thus at
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	45 * each point in the list a branch may appear for an alternate to redo. The
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	46 * uh_seq field is numbered sequentially to be able to find a newer or older
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	47 * branch.
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	48 *
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	49 * +---------------+ +---------------+
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	50 * b_u_oldhead --->\| u_header \| \| u_header \|
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	51 * \| uh_alt_next ---->\| uh_alt_next ----> NULL
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	52 * NULL <----- uh_alt_prev \|<------ uh_alt_prev \|
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	53 * \| uh_prev \| \| uh_prev \|
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	54 * +-----\|---------+ +-----\|---------+
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	55 * \| \|
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	56 * V V
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	57 * +---------------+ +---------------+
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	58 * \| u_header \| \| u_header \|
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	59 * \| uh_alt_next \| \| uh_alt_next \|
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	60 * b_u_newhead --->\| uh_alt_prev \| \| uh_alt_prev \|
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	61 * \| uh_prev \| \| uh_prev \|
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	62 * +-----\|---------+ +-----\|---------+
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	63 * \| \|
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	64 * V V
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	65 * NULL +---------------+ +---------------+
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	66 * \| u_header \| \| u_header \|
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	67 * \| uh_alt_next ---->\| uh_alt_next \|
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	68 * \| uh_alt_prev \|<------ uh_alt_prev \|
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	69 * \| uh_prev \| \| uh_prev \|
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	70 * +-----\|---------+ +-----\|---------+
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	71 * \| \|
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	72 * etc. etc.
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	73 *
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	74 *
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	75 * All data is allocated and will all be freed when the buffer is unloaded.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	76 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	77
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	78 /* Uncomment the next line for including the u_check() function. This warns
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	79 * for errors in the debug information. */
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	80 /* #define U_DEBUG 1 */
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	81 #define UH_MAGIC 0x18dade /* value for uh_magic when in use */
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	82 #define UE_MAGIC 0xabc123 /* value for ue_magic when in use */
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	83
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	84 #include "vim.h"
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	85
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	86 static void u_unch_branch __ARGS((u_header_T *uhp));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	87 static u_entry_T *u_get_headentry __ARGS((void));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	88 static void u_getbot __ARGS((void));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	89 static void u_doit __ARGS((int count));
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	90 static void u_undoredo __ARGS((int undo));
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	91 static void u_undo_end __ARGS((int did_undo, int absolute));
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	92 static void u_add_time __ARGS((char_u *buf, size_t buflen, time_t tt));
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	93 static void u_freeheader __ARGS((buf_T buf, u_header_T uhp, u_header_T **uhpp));
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	94 static void u_freebranch __ARGS((buf_T buf, u_header_T uhp, u_header_T **uhpp));
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	95 static void u_freeentries __ARGS((buf_T buf, u_header_T uhp, u_header_T **uhpp));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	96 static void u_freeentry __ARGS((u_entry_T *, long));
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	97 #ifdef FEAT_PERSISTENT_UNDO
2271 2b33a7678e7b Fix compiler warnings for shadowed variables. Make 'conceal' a long instead Bram Moolenaar <bram@vim.org> parents: 2267 diff changeset	98 static void corruption_error __ARGS((char mesg, char_u file_name));
2223 81b83a19e127 More strict checks for the undo file. Bram Moolenaar <bram@vim.org> parents: 2222 diff changeset	99 static void u_free_uhp __ARGS((u_header_T *uhp));
2266 ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	100 static size_t fwrite_crypt __ARGS((buf_T buf UNUSED, char_u ptr, size_t len, FILE *fp));
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	101 static char_u read_string_decrypt __ARGS((buf_T buf UNUSED, FILE *fd, int len));
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	102 static int serialize_header __ARGS((FILE fp, buf_T buf, char_u *hash));
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	103 static int serialize_uhp __ARGS((FILE fp, buf_T buf, u_header_T *uhp));
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	104 static u_header_T unserialize_uhp __ARGS((FILE fp, char_u *file_name));
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	105 static int serialize_uep __ARGS((FILE fp, buf_T buf, u_entry_T *uep));
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	106 static u_entry_T unserialize_uep __ARGS((FILE fp, int error, char_u file_name));
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	107 static void serialize_pos __ARGS((pos_T pos, FILE *fp));
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	108 static void unserialize_pos __ARGS((pos_T pos, FILE fp));
2229 d45902a5c61c Fix a few more things for persistent undo. Bram Moolenaar <bram@vim.org> parents: 2223 diff changeset	109 static void serialize_visualinfo __ARGS((visualinfo_T info, FILE fp));
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	110 static void unserialize_visualinfo __ARGS((visualinfo_T info, FILE fp));
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	111 static void put_header_ptr __ARGS((FILE fp, u_header_T uhp));
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	112 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	113
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	114 #define U_ALLOC_LINE(size) lalloc((long_u)(size), FALSE)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	115 static char_u *u_save_line __ARGS((linenr_T));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	116
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	117 /* used in undo_end() to report number of added and deleted lines */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	118 static long u_newcount, u_oldcount;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	119
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	120 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	121 * When 'u' flag included in 'cpoptions', we behave like vi. Need to remember
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	122 * the action that "u" should do.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	123 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	124 static int undo_undoes = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	125
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	126 static int lastmark = 0;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	127
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	128 #if defined(U_DEBUG) \|\| defined(PROTO)
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	129 /*
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	130 * Check the undo structures for being valid. Print a warning when something
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	131 * looks wrong.
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	132 */
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	133 static int seen_b_u_curhead;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	134 static int seen_b_u_newhead;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	135 static int header_count;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	136
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	137 static void
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	138 u_check_tree(u_header_T *uhp,
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	139 u_header_T *exp_uh_next,
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	140 u_header_T *exp_uh_alt_prev)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	141 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	142 u_entry_T *uep;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	143
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	144 if (uhp == NULL)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	145 return;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	146 ++header_count;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	147 if (uhp == curbuf->b_u_curhead && ++seen_b_u_curhead > 1)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	148 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	149 EMSG("b_u_curhead found twice (looping?)");
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	150 return;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	151 }
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	152 if (uhp == curbuf->b_u_newhead && ++seen_b_u_newhead > 1)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	153 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	154 EMSG("b_u_newhead found twice (looping?)");
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	155 return;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	156 }
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	157
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	158 if (uhp->uh_magic != UH_MAGIC)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	159 EMSG("uh_magic wrong (may be using freed memory)");
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	160 else
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	161 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	162 /* Check pointers back are correct. */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	163 if (uhp->uh_next.ptr != exp_uh_next)
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	164 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	165 EMSG("uh_next wrong");
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	166 smsg((char_u *)"expected: 0x%x, actual: 0x%x",
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	167 exp_uh_next, uhp->uh_next.ptr);
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	168 }
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	169 if (uhp->uh_alt_prev.ptr != exp_uh_alt_prev)
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	170 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	171 EMSG("uh_alt_prev wrong");
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	172 smsg((char_u *)"expected: 0x%x, actual: 0x%x",
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	173 exp_uh_alt_prev, uhp->uh_alt_prev.ptr);
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	174 }
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	175
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	176 /* Check the undo tree at this header. */
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	177 for (uep = uhp->uh_entry; uep != NULL; uep = uep->ue_next)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	178 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	179 if (uep->ue_magic != UE_MAGIC)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	180 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	181 EMSG("ue_magic wrong (may be using freed memory)");
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	182 break;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	183 }
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	184 }
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	185
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	186 /* Check the next alt tree. */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	187 u_check_tree(uhp->uh_alt_next.ptr, uhp->uh_next.ptr, uhp);
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	188
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	189 /* Check the next header in this branch. */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	190 u_check_tree(uhp->uh_prev.ptr, uhp, NULL);
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	191 }
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	192 }
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	193
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	194 static void
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	195 u_check(int newhead_may_be_NULL)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	196 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	197 seen_b_u_newhead = 0;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	198 seen_b_u_curhead = 0;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	199 header_count = 0;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	200
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	201 u_check_tree(curbuf->b_u_oldhead, NULL, NULL);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	202
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	203 if (seen_b_u_newhead == 0 && curbuf->b_u_oldhead != NULL
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	204 && !(newhead_may_be_NULL && curbuf->b_u_newhead == NULL))
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	205 EMSGN("b_u_newhead invalid: 0x%x", curbuf->b_u_newhead);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	206 if (curbuf->b_u_curhead != NULL && seen_b_u_curhead == 0)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	207 EMSGN("b_u_curhead invalid: 0x%x", curbuf->b_u_curhead);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	208 if (header_count != curbuf->b_u_numhead)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	209 {
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	210 EMSG("b_u_numhead invalid");
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	211 smsg((char_u *)"expected: %ld, actual: %ld",
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	212 (long)header_count, (long)curbuf->b_u_numhead);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	213 }
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	214 }
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	215 #endif
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	216
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	217 /*
344 7033303ea0c0 updated for version 7.0089 vimboss parents: 179 diff changeset	218 * Save the current line for both the "u" and "U" command.
7033303ea0c0 updated for version 7.0089 vimboss parents: 179 diff changeset	219 * Returns OK or FAIL.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	220 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	221 int
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	222 u_save_cursor()
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	223 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	224 return (u_save((linenr_T)(curwin->w_cursor.lnum - 1),
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	225 (linenr_T)(curwin->w_cursor.lnum + 1)));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	226 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	227
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	228 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	229 * Save the lines between "top" and "bot" for both the "u" and "U" command.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	230 * "top" may be 0 and bot may be curbuf->b_ml.ml_line_count + 1.
2289 3331756e4232 Make synstack() work on the character just after the end of the line. Bram Moolenaar <bram@vim.org> parents: 2288 diff changeset	231 * Careful: may trigger autocommands that reload the buffer.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	232 * Returns FAIL when lines could not be saved, OK otherwise.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	233 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	234 int
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	235 u_save(top, bot)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	236 linenr_T top, bot;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	237 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	238 if (undo_off)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	239 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	240
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	241 if (top > curbuf->b_ml.ml_line_count \|\|
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	242 top >= bot \|\| bot > curbuf->b_ml.ml_line_count + 1)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	243 return FALSE; /* rely on caller to do error messages */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	244
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	245 if (top + 2 == bot)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	246 u_saveline((linenr_T)(top + 1));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	247
2394 a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	248 return (u_savecommon(top, bot, (linenr_T)0, FALSE));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	249 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	250
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	251 /*
2181 f838615313cd updated for version 7.2.441 Bram Moolenaar <bram@vim.org> parents: 2165 diff changeset	252 * Save the line "lnum" (used by ":s" and "~" command).
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	253 * The line is replaced, so the new bottom line is lnum + 1.
2289 3331756e4232 Make synstack() work on the character just after the end of the line. Bram Moolenaar <bram@vim.org> parents: 2288 diff changeset	254 * Careful: may trigger autocommands that reload the buffer.
3331756e4232 Make synstack() work on the character just after the end of the line. Bram Moolenaar <bram@vim.org> parents: 2288 diff changeset	255 * Returns FAIL when lines could not be saved, OK otherwise.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	256 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	257 int
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	258 u_savesub(lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	259 linenr_T lnum;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	260 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	261 if (undo_off)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	262 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	263
2394 a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	264 return (u_savecommon(lnum - 1, lnum + 1, lnum + 1, FALSE));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	265 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	266
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	267 /*
2181 f838615313cd updated for version 7.2.441 Bram Moolenaar <bram@vim.org> parents: 2165 diff changeset	268 * A new line is inserted before line "lnum" (used by :s command).
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	269 * The line is inserted, so the new bottom line is lnum + 1.
2289 3331756e4232 Make synstack() work on the character just after the end of the line. Bram Moolenaar <bram@vim.org> parents: 2288 diff changeset	270 * Careful: may trigger autocommands that reload the buffer.
3331756e4232 Make synstack() work on the character just after the end of the line. Bram Moolenaar <bram@vim.org> parents: 2288 diff changeset	271 * Returns FAIL when lines could not be saved, OK otherwise.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	272 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	273 int
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	274 u_inssub(lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	275 linenr_T lnum;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	276 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	277 if (undo_off)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	278 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	279
2394 a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	280 return (u_savecommon(lnum - 1, lnum, lnum + 1, FALSE));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	281 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	282
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	283 /*
2181 f838615313cd updated for version 7.2.441 Bram Moolenaar <bram@vim.org> parents: 2165 diff changeset	284 * Save the lines "lnum" - "lnum" + nlines (used by delete command).
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	285 * The lines are deleted, so the new bottom line is lnum, unless the buffer
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	286 * becomes empty.
2289 3331756e4232 Make synstack() work on the character just after the end of the line. Bram Moolenaar <bram@vim.org> parents: 2288 diff changeset	287 * Careful: may trigger autocommands that reload the buffer.
3331756e4232 Make synstack() work on the character just after the end of the line. Bram Moolenaar <bram@vim.org> parents: 2288 diff changeset	288 * Returns FAIL when lines could not be saved, OK otherwise.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	289 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	290 int
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	291 u_savedel(lnum, nlines)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	292 linenr_T lnum;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	293 long nlines;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	294 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	295 if (undo_off)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	296 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	297
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	298 return (u_savecommon(lnum - 1, lnum + nlines,
2394 a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	299 nlines == curbuf->b_ml.ml_line_count ? 2 : lnum, FALSE));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	300 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	301
632 b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	302 /*
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	303 * Return TRUE when undo is allowed. Otherwise give an error message and
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	304 * return FALSE.
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	305 */
912 adf6a9dcaded updated for version 7.0-038 vimboss parents: 839 diff changeset	306 int
632 b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	307 undo_allowed()
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	308 {
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	309 /* Don't allow changes when 'modifiable' is off. */
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	310 if (!curbuf->b_p_ma)
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	311 {
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	312 EMSG(_(e_modifiable));
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	313 return FALSE;
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	314 }
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	315
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	316 #ifdef HAVE_SANDBOX
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	317 /* In the sandbox it's not allowed to change the text. */
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	318 if (sandbox != 0)
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	319 {
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	320 EMSG(_(e_sandbox));
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	321 return FALSE;
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	322 }
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	323 #endif
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	324
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	325 /* Don't allow changes in the buffer while editing the cmdline. The
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	326 * caller of getcmdline() may get confused. */
634 1c586ee8dd45 updated for version 7.0183 vimboss parents: 632 diff changeset	327 if (textlock != 0)
632 b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	328 {
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	329 EMSG(_(e_secure));
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	330 return FALSE;
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	331 }
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	332
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	333 return TRUE;
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	334 }
b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	335
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	336 /*
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	337 * Common code for various ways to save text before a change.
2289 3331756e4232 Make synstack() work on the character just after the end of the line. Bram Moolenaar <bram@vim.org> parents: 2288 diff changeset	338 * "top" is the line above the first changed line.
3331756e4232 Make synstack() work on the character just after the end of the line. Bram Moolenaar <bram@vim.org> parents: 2288 diff changeset	339 * "bot" is the line below the last changed line.
2394 a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	340 * "newbot" is the new bottom line. Use zero when not known.
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	341 * "reload" is TRUE when saving for a buffer reload.
2289 3331756e4232 Make synstack() work on the character just after the end of the line. Bram Moolenaar <bram@vim.org> parents: 2288 diff changeset	342 * Careful: may trigger autocommands that reload the buffer.
3331756e4232 Make synstack() work on the character just after the end of the line. Bram Moolenaar <bram@vim.org> parents: 2288 diff changeset	343 * Returns FAIL when lines could not be saved, OK otherwise.
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	344 */
2394 a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	345 int
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	346 u_savecommon(top, bot, newbot, reload)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	347 linenr_T top, bot;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	348 linenr_T newbot;
2394 a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	349 int reload;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	350 {
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	351 linenr_T lnum;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	352 long i;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	353 u_header_T *uhp;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	354 u_header_T *old_curhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	355 u_entry_T *uep;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	356 u_entry_T *prev_uep;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	357 long size;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	358
2394 a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	359 if (!reload)
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	360 {
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	361 /* When making changes is not allowed return FAIL. It's a crude way
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	362 * to make all change commands fail. */
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	363 if (!undo_allowed())
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	364 return FAIL;
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	365
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	366 #ifdef FEAT_NETBEANS_INTG
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	367 /*
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	368 * Netbeans defines areas that cannot be modified. Bail out here when
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	369 * trying to change text in a guarded area.
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	370 */
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	371 if (netbeans_active())
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	372 {
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	373 if (netbeans_is_guarded(top, bot))
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	374 {
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	375 EMSG(_(e_guarded));
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	376 return FAIL;
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	377 }
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	378 if (curbuf->b_p_ro)
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	379 {
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	380 EMSG(_(e_nbreadonly));
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	381 return FAIL;
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	382 }
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	383 }
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	384 #endif
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	385
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	386 #ifdef FEAT_AUTOCMD
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	387 /*
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	388 * Saving text for undo means we are going to make a change. Give a
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	389 * warning for a read-only file before making the change, so that the
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	390 * FileChangedRO event can replace the buffer with a read-write version
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	391 * (e.g., obtained from a source control system).
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	392 */
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	393 change_warning(0);
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	394 if (bot > curbuf->b_ml.ml_line_count + 1)
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	395 {
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	396 /* This happens when the FileChangedRO autocommand changes the
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	397 * file in a way it becomes shorter. */
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	398 EMSG(_("E834: Line count changed unexpectedly"));
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	399 return FAIL;
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	400 }
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	401 #endif
a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	402 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	403
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	404 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	405 u_check(FALSE);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	406 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	407
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	408 size = bot - top - 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	409
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	410 /*
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	411 * If curbuf->b_u_synced == TRUE make a new header.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	412 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	413 if (curbuf->b_u_synced)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	414 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	415 #ifdef FEAT_JUMPLIST
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	416 /* Need to create new entry in b_changelist. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	417 curbuf->b_new_change = TRUE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	418 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	419
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	420 if (p_ul >= 0)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	421 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	422 /*
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	423 * Make a new header entry. Do this first so that we don't mess
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	424 * up the undo info when out of memory.
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	425 */
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	426 uhp = (u_header_T *)U_ALLOC_LINE(sizeof(u_header_T));
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	427 if (uhp == NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	428 goto nomem;
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	429 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	430 uhp->uh_magic = UH_MAGIC;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	431 #endif
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	432 }
766 f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	433 else
f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	434 uhp = NULL;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	435
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	436 /*
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	437 * If we undid more than we redid, move the entry lists before and
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	438 * including curbuf->b_u_curhead to an alternate branch.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	439 */
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	440 old_curhead = curbuf->b_u_curhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	441 if (old_curhead != NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	442 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	443 curbuf->b_u_newhead = old_curhead->uh_next.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	444 curbuf->b_u_curhead = NULL;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	445 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	446
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	447 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	448 * free headers to keep the size right
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	449 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	450 while (curbuf->b_u_numhead > p_ul && curbuf->b_u_oldhead != NULL)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	451 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	452 u_header_T *uhfree = curbuf->b_u_oldhead;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	453
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	454 if (uhfree == old_curhead)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	455 /* Can't reconnect the branch, delete all of it. */
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	456 u_freebranch(curbuf, uhfree, &old_curhead);
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	457 else if (uhfree->uh_alt_next.ptr == NULL)
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	458 /* There is no branch, only free one header. */
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	459 u_freeheader(curbuf, uhfree, &old_curhead);
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	460 else
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	461 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	462 /* Free the oldest alternate branch as a whole. */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	463 while (uhfree->uh_alt_next.ptr != NULL)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	464 uhfree = uhfree->uh_alt_next.ptr;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	465 u_freebranch(curbuf, uhfree, &old_curhead);
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	466 }
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	467 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	468 u_check(TRUE);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	469 #endif
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	470 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	471
766 f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	472 if (uhp == NULL) /* no undo at all */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	473 {
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	474 if (old_curhead != NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	475 u_freebranch(curbuf, old_curhead, NULL);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	476 curbuf->b_u_synced = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	477 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	478 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	479
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	480 uhp->uh_prev.ptr = NULL;
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	481 uhp->uh_next.ptr = curbuf->b_u_newhead;
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	482 uhp->uh_alt_next.ptr = old_curhead;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	483 if (old_curhead != NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	484 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	485 uhp->uh_alt_prev.ptr = old_curhead->uh_alt_prev.ptr;
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	486 if (uhp->uh_alt_prev.ptr != NULL)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	487 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = uhp;
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	488 old_curhead->uh_alt_prev.ptr = uhp;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	489 if (curbuf->b_u_oldhead == old_curhead)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	490 curbuf->b_u_oldhead = uhp;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	491 }
1056 e6d25347de2c updated for version 7.0-182 vimboss parents: 944 diff changeset	492 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	493 uhp->uh_alt_prev.ptr = NULL;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	494 if (curbuf->b_u_newhead != NULL)
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	495 curbuf->b_u_newhead->uh_prev.ptr = uhp;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	496
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	497 uhp->uh_seq = ++curbuf->b_u_seq_last;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	498 curbuf->b_u_seq_cur = uhp->uh_seq;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	499 uhp->uh_time = time(NULL);
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	500 uhp->uh_save_nr = 0;
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	501 curbuf->b_u_time_cur = uhp->uh_time + 1;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	502
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	503 uhp->uh_walk = 0;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	504 uhp->uh_entry = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	505 uhp->uh_getbot_entry = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	506 uhp->uh_cursor = curwin->w_cursor; /* save cursor pos. for undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	507 #ifdef FEAT_VIRTUALEDIT
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	508 if (virtual_active() && curwin->w_cursor.coladd > 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	509 uhp->uh_cursor_vcol = getviscol();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	510 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	511 uhp->uh_cursor_vcol = -1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	512 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	513
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	514 /* save changed and buffer empty flag for undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	515 uhp->uh_flags = (curbuf->b_changed ? UH_CHANGED : 0) +
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	516 ((curbuf->b_ml.ml_flags & ML_EMPTY) ? UH_EMPTYBUF : 0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	517
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	518 /* save named marks and Visual marks for undo */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	519 mch_memmove(uhp->uh_namedm, curbuf->b_namedm, sizeof(pos_T) * NMARKS);
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	520 #ifdef FEAT_VISUAL
a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	521 uhp->uh_visual = curbuf->b_visual;
a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	522 #endif
a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	523
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	524 curbuf->b_u_newhead = uhp;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	525 if (curbuf->b_u_oldhead == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	526 curbuf->b_u_oldhead = uhp;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	527 ++curbuf->b_u_numhead;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	528 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	529 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	530 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	531 if (p_ul < 0) /* no undo at all */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	532 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	533
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	534 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	535 * When saving a single line, and it has been saved just before, it
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	536 * doesn't make sense saving it again. Saves a lot of memory when
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	537 * making lots of changes inside the same line.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	538 * This is only possible if the previous change didn't increase or
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	539 * decrease the number of lines.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	540 * Check the ten last changes. More doesn't make sense and takes too
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	541 * long.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	542 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	543 if (size == 1)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	544 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	545 uep = u_get_headentry();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	546 prev_uep = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	547 for (i = 0; i < 10; ++i)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	548 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	549 if (uep == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	550 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	551
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	552 /* If lines have been inserted/deleted we give up.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	553 * Also when the line was included in a multi-line save. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	554 if ((curbuf->b_u_newhead->uh_getbot_entry != uep
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	555 ? (uep->ue_top + uep->ue_size + 1
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	556 != (uep->ue_bot == 0
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	557 ? curbuf->b_ml.ml_line_count + 1
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	558 : uep->ue_bot))
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	559 : uep->ue_lcount != curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	560 \|\| (uep->ue_size > 1
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	561 && top >= uep->ue_top
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	562 && top + 2 <= uep->ue_top + uep->ue_size + 1))
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	563 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	564
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	565 /* If it's the same line we can skip saving it again. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	566 if (uep->ue_size == 1 && uep->ue_top == top)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	567 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	568 if (i > 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	569 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	570 /* It's not the last entry: get ue_bot for the last
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	571 * entry now. Following deleted/inserted lines go to
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	572 * the re-used entry. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	573 u_getbot();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	574 curbuf->b_u_synced = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	575
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	576 /* Move the found entry to become the last entry. The
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	577 * order of undo/redo doesn't matter for the entries
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	578 * we move it over, since they don't change the line
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	579 * count and don't include this line. It does matter
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	580 * for the found entry if the line count is changed by
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	581 * the executed command. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	582 prev_uep->ue_next = uep->ue_next;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	583 uep->ue_next = curbuf->b_u_newhead->uh_entry;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	584 curbuf->b_u_newhead->uh_entry = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	585 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	586
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	587 /* The executed command may change the line count. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	588 if (newbot != 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	589 uep->ue_bot = newbot;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	590 else if (bot > curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	591 uep->ue_bot = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	592 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	593 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	594 uep->ue_lcount = curbuf->b_ml.ml_line_count;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	595 curbuf->b_u_newhead->uh_getbot_entry = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	596 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	597 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	598 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	599 prev_uep = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	600 uep = uep->ue_next;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	601 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	602 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	603
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	604 /* find line number for ue_bot for previous u_save() */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	605 u_getbot();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	606 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	607
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	608 #if !defined(UNIX) && !defined(DJGPP) && !defined(WIN32) && !defined(__EMX__)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	609 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	610 * With Amiga and MSDOS 16 bit we can't handle big undo's, because
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	611 * then u_alloc_line would have to allocate a block larger than 32K
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	612 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	613 if (size >= 8000)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	614 goto nomem;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	615 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	616
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	617 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	618 * add lines in front of entry list
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	619 */
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	620 uep = (u_entry_T *)U_ALLOC_LINE(sizeof(u_entry_T));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	621 if (uep == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	622 goto nomem;
2215 cccb71c2c5c1 Fix uninit memory read in undo code. Fix uint32_t in proto file. Bram Moolenaar <bram@vim.org> parents: 2214 diff changeset	623 vim_memset(uep, 0, sizeof(u_entry_T));
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	624 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	625 uep->ue_magic = UE_MAGIC;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	626 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	627
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	628 uep->ue_size = size;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	629 uep->ue_top = top;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	630 if (newbot != 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	631 uep->ue_bot = newbot;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	632 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	633 * Use 0 for ue_bot if bot is below last line.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	634 * Otherwise we have to compute ue_bot later.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	635 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	636 else if (bot > curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	637 uep->ue_bot = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	638 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	639 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	640 uep->ue_lcount = curbuf->b_ml.ml_line_count;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	641 curbuf->b_u_newhead->uh_getbot_entry = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	642 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	643
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	644 if (size > 0)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	645 {
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	646 if ((uep->ue_array = (char_u **)U_ALLOC_LINE(
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	647 sizeof(char_u ) size)) == NULL)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	648 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	649 u_freeentry(uep, 0L);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	650 goto nomem;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	651 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	652 for (i = 0, lnum = top + 1; i < size; ++i)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	653 {
481 66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	654 fast_breakcheck();
66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	655 if (got_int)
66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	656 {
66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	657 u_freeentry(uep, i);
66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	658 return FAIL;
66080ac5dab7 updated for version 7.0130 vimboss parents: 414 diff changeset	659 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	660 if ((uep->ue_array[i] = u_save_line(lnum++)) == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	661 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	662 u_freeentry(uep, i);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	663 goto nomem;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	664 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	665 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	666 }
359 6c62b9b939bd updated for version 7.0093 vimboss parents: 356 diff changeset	667 else
6c62b9b939bd updated for version 7.0093 vimboss parents: 356 diff changeset	668 uep->ue_array = NULL;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	669 uep->ue_next = curbuf->b_u_newhead->uh_entry;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	670 curbuf->b_u_newhead->uh_entry = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	671 curbuf->b_u_synced = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	672 undo_undoes = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	673
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	674 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	675 u_check(FALSE);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	676 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	677 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	678
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	679 nomem:
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	680 msg_silent = 0; /* must display the prompt */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	681 if (ask_yesno((char_u *)_("No undo possible; continue anyway"), TRUE)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	682 == 'y')
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	683 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	684 undo_off = TRUE; /* will be reset when character typed */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	685 return OK;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	686 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	687 do_outofmem_msg((long_u)0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	688 return FAIL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	689 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	690
2266 ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	691 #if defined(FEAT_PERSISTENT_UNDO) \|\| defined(PROTO)
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	692
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	693 # define UF_START_MAGIC "Vim\237UnDo\345" /* magic at start of undofile */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	694 # define UF_START_MAGIC_LEN 9
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	695 # define UF_HEADER_MAGIC 0x5fd0 /* magic at start of header */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	696 # define UF_HEADER_END_MAGIC 0xe7aa /* magic after last header */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	697 # define UF_ENTRY_MAGIC 0xf518 /* magic at start of entry */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	698 # define UF_ENTRY_END_MAGIC 0x3581 /* magic after last entry */
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	699 # define UF_VERSION 2 /* 2-byte undofile version number */
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	700 # define UF_VERSION_CRYPT 0x8002 /* idem, encrypted */
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	701
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	702 /* extra fields for header */
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	703 # define UF_LAST_SAVE_NR 1
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	704
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	705 /* extra fields for uhp */
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	706 # define UHP_SAVE_NR 1
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	707
2229 d45902a5c61c Fix a few more things for persistent undo. Bram Moolenaar <bram@vim.org> parents: 2223 diff changeset	708 static char_u e_not_open[] = N_("E828: Cannot open undo file for writing: %s");
d45902a5c61c Fix a few more things for persistent undo. Bram Moolenaar <bram@vim.org> parents: 2223 diff changeset	709
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	710 /*
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	711 * Compute the hash for the current buffer text into hash[UNDO_HASH_SIZE].
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	712 */
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	713 void
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	714 u_compute_hash(hash)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	715 char_u *hash;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	716 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	717 context_sha256_T ctx;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	718 linenr_T lnum;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	719 char_u *p;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	720
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	721 sha256_start(&ctx);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	722 for (lnum = 1; lnum < curbuf->b_ml.ml_line_count; ++lnum)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	723 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	724 p = ml_get(lnum);
2217 120502692d82 Improve the MS-Windows installer. Bram Moolenaar <bram@vim.org> parents: 2215 diff changeset	725 sha256_update(&ctx, p, (UINT32_T)(STRLEN(p) + 1));
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	726 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	727 sha256_finish(&ctx, hash);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	728 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	729
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	730 /*
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	731 * Return an allocated string of the full path of the target undofile.
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	732 * When "reading" is TRUE find the file to read, go over all directories in
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	733 * 'undodir'.
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	734 * When "reading" is FALSE use the first name where the directory exists.
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	735 * Returns NULL when there is no place to write or no file to read.
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	736 */
2236 dc2e5ec0500d Added the undofile() function. Updated runtime files. Bram Moolenaar <bram@vim.org> parents: 2235 diff changeset	737 char_u *
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	738 u_get_undo_file_name(buf_ffname, reading)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	739 char_u *buf_ffname;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	740 int reading;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	741 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	742 char_u *dirp;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	743 char_u dir_name[IOSIZE + 1];
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	744 char_u *munged_name = NULL;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	745 char_u *undo_file_name = NULL;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	746 int dir_len;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	747 char_u *p;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	748 struct stat st;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	749 char_u *ffname = buf_ffname;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	750 #ifdef HAVE_READLINK
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	751 char_u fname_buf[MAXPATHL];
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	752 #endif
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	753
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	754 if (ffname == NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	755 return NULL;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	756
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	757 #ifdef HAVE_READLINK
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	758 /* Expand symlink in the file name, so that we put the undo file with the
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	759 * actual file instead of with the symlink. */
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	760 if (resolve_symlink(ffname, fname_buf) == OK)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	761 ffname = fname_buf;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	762 #endif
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	763
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	764 /* Loop over 'undodir'. When reading find the first file that exists.
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	765 * When not reading use the first directory that exists or ".". */
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	766 dirp = p_udir;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	767 while (*dirp != NUL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	768 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	769 dir_len = copy_option_part(&dirp, dir_name, IOSIZE, ",");
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	770 if (dir_len == 1 && dir_name[0] == '.')
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	771 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	772 /* Use same directory as the ffname,
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	773 * "dir/name" -> "dir/.name.un~" */
2217 120502692d82 Improve the MS-Windows installer. Bram Moolenaar <bram@vim.org> parents: 2215 diff changeset	774 undo_file_name = vim_strnsave(ffname, (int)(STRLEN(ffname) + 5));
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	775 if (undo_file_name == NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	776 break;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	777 p = gettail(undo_file_name);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	778 mch_memmove(p + 1, p, STRLEN(p) + 1);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	779 *p = '.';
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	780 STRCAT(p, ".un~");
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	781 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	782 else
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	783 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	784 dir_name[dir_len] = NUL;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	785 if (mch_isdir(dir_name))
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	786 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	787 if (munged_name == NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	788 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	789 munged_name = vim_strsave(ffname);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	790 if (munged_name == NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	791 return NULL;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	792 for (p = munged_name; *p != NUL; mb_ptr_adv(p))
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	793 if (vim_ispathsep(*p))
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	794 *p = '%';
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	795 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	796 undo_file_name = concat_fnames(dir_name, munged_name, TRUE);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	797 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	798 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	799
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	800 /* When reading check if the file exists. */
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	801 if (undo_file_name != NULL && (!reading
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	802 \|\| mch_stat((char *)undo_file_name, &st) >= 0))
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	803 break;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	804 vim_free(undo_file_name);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	805 undo_file_name = NULL;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	806 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	807
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	808 vim_free(munged_name);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	809 return undo_file_name;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	810 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	811
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	812 static void
2271 2b33a7678e7b Fix compiler warnings for shadowed variables. Make 'conceal' a long instead Bram Moolenaar <bram@vim.org> parents: 2267 diff changeset	813 corruption_error(mesg, file_name)
2b33a7678e7b Fix compiler warnings for shadowed variables. Make 'conceal' a long instead Bram Moolenaar <bram@vim.org> parents: 2267 diff changeset	814 char *mesg;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	815 char_u *file_name;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	816 {
2271 2b33a7678e7b Fix compiler warnings for shadowed variables. Make 'conceal' a long instead Bram Moolenaar <bram@vim.org> parents: 2267 diff changeset	817 EMSG3(_("E825: Corrupted undo file (%s): %s"), mesg, file_name);
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	818 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	819
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	820 static void
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	821 u_free_uhp(uhp)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	822 u_header_T *uhp;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	823 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	824 u_entry_T *nuep;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	825 u_entry_T *uep;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	826
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	827 uep = uhp->uh_entry;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	828 while (uep != NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	829 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	830 nuep = uep->ue_next;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	831 u_freeentry(uep, uep->ue_size);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	832 uep = nuep;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	833 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	834 vim_free(uhp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	835 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	836
2266 ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	837 /*
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	838 * Like fwrite() but crypt the bytes when 'key' is set.
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	839 * Returns 1 if successful.
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	840 */
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	841 static size_t
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	842 fwrite_crypt(buf, ptr, len, fp)
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	843 buf_T *buf UNUSED;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	844 char_u *ptr;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	845 size_t len;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	846 FILE *fp;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	847 {
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	848 #ifdef FEAT_CRYPT
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	849 char_u *copy;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	850 char_u small_buf[100];
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	851 size_t i;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	852
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	853 if (*buf->b_p_key == NUL)
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	854 return fwrite(ptr, len, (size_t)1, fp);
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	855 if (len < 100)
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	856 copy = small_buf; /* no malloc()/free() for short strings */
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	857 else
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	858 {
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	859 copy = lalloc(len, FALSE);
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	860 if (copy == NULL)
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	861 return 0;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	862 }
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	863 crypt_encode(ptr, len, copy);
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	864 i = fwrite(copy, len, (size_t)1, fp);
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	865 if (copy != small_buf)
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	866 vim_free(copy);
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	867 return i;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	868 #else
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	869 return fwrite(ptr, len, (size_t)1, fp);
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	870 #endif
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	871 }
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	872
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	873 /*
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	874 * Read a string of length "len" from "fd".
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	875 * When 'key' is set decrypt the bytes.
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	876 */
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	877 static char_u *
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	878 read_string_decrypt(buf, fd, len)
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	879 buf_T *buf UNUSED;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	880 FILE *fd;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	881 int len;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	882 {
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	883 char_u *ptr;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	884
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	885 ptr = read_string(fd, len);
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	886 #ifdef FEAT_CRYPT
2410 8f6106dd3d12 Fix: editing a not encrypted file after a crypted file messed up reading the Bram Moolenaar <bram@vim.org> parents: 2394 diff changeset	887 if (ptr != NULL && *buf->b_p_key != NUL)
2266 ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	888 crypt_decode(ptr, len);
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	889 #endif
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	890 return ptr;
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	891 }
ae2e615a7320 Fix tiny build, move functions to undo.c. Bram Moolenaar <bram@vim.org> parents: 2262 diff changeset	892
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	893 static int
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	894 serialize_header(fp, buf, hash)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	895 FILE *fp;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	896 buf_T *buf;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	897 char_u *hash;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	898 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	899 int len;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	900
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	901 /* Start writing, first the magic marker and undo info version. */
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	902 if (fwrite(UF_START_MAGIC, (size_t)UF_START_MAGIC_LEN, (size_t)1, fp) != 1)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	903 return FAIL;
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	904
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	905 /* If the buffer is encrypted then all text bytes following will be
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	906 * encrypted. Numbers and other info is not crypted. */
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	907 #ifdef FEAT_CRYPT
2410 8f6106dd3d12 Fix: editing a not encrypted file after a crypted file messed up reading the Bram Moolenaar <bram@vim.org> parents: 2394 diff changeset	908 if (*buf->b_p_key != NUL)
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	909 {
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	910 char_u *header;
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	911 int header_len;
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	912
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	913 put_bytes(fp, (long_u)UF_VERSION_CRYPT, 2);
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	914 header = prepare_crypt_write(buf, &header_len);
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	915 if (header == NULL)
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	916 return FAIL;
2245 4e0124f5aee2 Optimize the blowfish crypt/decrypt code a bit more. Bram Moolenaar <bram@vim.org> parents: 2242 diff changeset	917 len = (int)fwrite(header, (size_t)header_len, (size_t)1, fp);
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	918 vim_free(header);
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	919 if (len != 1)
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	920 {
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	921 crypt_pop_state();
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	922 return FAIL;
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	923 }
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	924 }
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	925 else
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	926 #endif
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	927 put_bytes(fp, (long_u)UF_VERSION, 2);
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	928
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	929
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	930 /* Write a hash of the buffer text, so that we can verify it is still the
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	931 * same when reading the buffer text. */
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	932 if (fwrite(hash, (size_t)UNDO_HASH_SIZE, (size_t)1, fp) != 1)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	933 return FAIL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	934
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	935 /* buffer-specific data */
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	936 put_bytes(fp, (long_u)buf->b_ml.ml_line_count, 4);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	937 len = buf->b_u_line_ptr != NULL ? (int)STRLEN(buf->b_u_line_ptr) : 0;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	938 put_bytes(fp, (long_u)len, 4);
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	939 if (len > 0 && fwrite_crypt(buf, buf->b_u_line_ptr, (size_t)len, fp) != 1)
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	940 return FAIL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	941 put_bytes(fp, (long_u)buf->b_u_line_lnum, 4);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	942 put_bytes(fp, (long_u)buf->b_u_line_colnr, 4);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	943
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	944 /* Undo structures header data */
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	945 put_header_ptr(fp, buf->b_u_oldhead);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	946 put_header_ptr(fp, buf->b_u_newhead);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	947 put_header_ptr(fp, buf->b_u_curhead);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	948
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	949 put_bytes(fp, (long_u)buf->b_u_numhead, 4);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	950 put_bytes(fp, (long_u)buf->b_u_seq_last, 4);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	951 put_bytes(fp, (long_u)buf->b_u_seq_cur, 4);
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	952 put_time(fp, buf->b_u_time_cur);
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	953
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	954 /* Optional fields. */
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	955 putc(4, fp);
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	956 putc(UF_LAST_SAVE_NR, fp);
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	957 put_bytes(fp, (long_u)buf->b_u_save_nr_last, 4);
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	958
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	959 putc(0, fp); /* end marker */
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	960
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	961 return OK;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	962 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	963
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	964 static int
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	965 serialize_uhp(fp, buf, uhp)
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	966 FILE *fp;
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	967 buf_T *buf;
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	968 u_header_T *uhp;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	969 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	970 int i;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	971 u_entry_T *uep;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	972
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	973 if (put_bytes(fp, (long_u)UF_HEADER_MAGIC, 2) == FAIL)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	974 return FAIL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	975
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	976 put_header_ptr(fp, uhp->uh_next.ptr);
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	977 put_header_ptr(fp, uhp->uh_prev.ptr);
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	978 put_header_ptr(fp, uhp->uh_alt_next.ptr);
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	979 put_header_ptr(fp, uhp->uh_alt_prev.ptr);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	980 put_bytes(fp, uhp->uh_seq, 4);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	981 serialize_pos(uhp->uh_cursor, fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	982 #ifdef FEAT_VIRTUALEDIT
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	983 put_bytes(fp, (long_u)uhp->uh_cursor_vcol, 4);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	984 #else
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	985 put_bytes(fp, (long_u)0, 4);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	986 #endif
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	987 put_bytes(fp, (long_u)uhp->uh_flags, 2);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	988 /* Assume NMARKS will stay the same. */
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	989 for (i = 0; i < NMARKS; ++i)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	990 serialize_pos(uhp->uh_namedm[i], fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	991 #ifdef FEAT_VISUAL
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	992 serialize_visualinfo(&uhp->uh_visual, fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	993 #else
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	994 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	995 visualinfo_T info;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	996
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	997 memset(&info, 0, sizeof(visualinfo_T));
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	998 serialize_visualinfo(&info, fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	999 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1000 #endif
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1001 put_time(fp, uhp->uh_time);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1002
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1003 /* Optional fields. */
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1004 putc(4, fp);
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1005 putc(UHP_SAVE_NR, fp);
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1006 put_bytes(fp, (long_u)uhp->uh_save_nr, 4);
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1007
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1008 putc(0, fp); /* end marker */
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1009
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1010 /* Write all the entries. */
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1011 for (uep = uhp->uh_entry; uep != NULL; uep = uep->ue_next)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1012 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1013 put_bytes(fp, (long_u)UF_ENTRY_MAGIC, 2);
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1014 if (serialize_uep(fp, buf, uep) == FAIL)
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1015 return FAIL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1016 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1017 put_bytes(fp, (long_u)UF_ENTRY_END_MAGIC, 2);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1018 return OK;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1019 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1020
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1021 static u_header_T *
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1022 unserialize_uhp(fp, file_name)
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1023 FILE *fp;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1024 char_u *file_name;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1025 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1026 u_header_T *uhp;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1027 int i;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1028 u_entry_T uep, last_uep;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1029 int c;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1030 int error;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1031
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1032 uhp = (u_header_T *)U_ALLOC_LINE(sizeof(u_header_T));
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1033 if (uhp == NULL)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1034 return NULL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1035 vim_memset(uhp, 0, sizeof(u_header_T));
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1036 #ifdef U_DEBUG
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1037 uhp->uh_magic = UH_MAGIC;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1038 #endif
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1039 uhp->uh_next.seq = get4c(fp);
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1040 uhp->uh_prev.seq = get4c(fp);
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1041 uhp->uh_alt_next.seq = get4c(fp);
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1042 uhp->uh_alt_prev.seq = get4c(fp);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1043 uhp->uh_seq = get4c(fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1044 if (uhp->uh_seq <= 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1045 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1046 corruption_error("uh_seq", file_name);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1047 vim_free(uhp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1048 return NULL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1049 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1050 unserialize_pos(&uhp->uh_cursor, fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1051 #ifdef FEAT_VIRTUALEDIT
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1052 uhp->uh_cursor_vcol = get4c(fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1053 #else
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1054 (void)get4c(fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1055 #endif
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1056 uhp->uh_flags = get2c(fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1057 for (i = 0; i < NMARKS; ++i)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1058 unserialize_pos(&uhp->uh_namedm[i], fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1059 #ifdef FEAT_VISUAL
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1060 unserialize_visualinfo(&uhp->uh_visual, fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1061 #else
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1062 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1063 visualinfo_T info;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1064 unserialize_visualinfo(&info, fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1065 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1066 #endif
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1067 uhp->uh_time = get8ctime(fp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1068
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1069 /* Optional fields. */
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1070 for (;;)
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1071 {
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1072 int len = getc(fp);
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1073 int what;
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1074
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1075 if (len == 0)
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1076 break;
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1077 what = getc(fp);
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1078 switch (what)
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1079 {
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1080 case UHP_SAVE_NR:
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1081 uhp->uh_save_nr = get4c(fp);
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1082 break;
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1083 default:
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1084 /* field not supported, skip */
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1085 while (--len >= 0)
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1086 (void)getc(fp);
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1087 }
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1088 }
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1089
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1090 /* Unserialize the uep list. */
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1091 last_uep = NULL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1092 while ((c = get2c(fp)) == UF_ENTRY_MAGIC)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1093 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1094 error = FALSE;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1095 uep = unserialize_uep(fp, &error, file_name);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1096 if (last_uep == NULL)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1097 uhp->uh_entry = uep;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1098 else
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1099 last_uep->ue_next = uep;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1100 last_uep = uep;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1101 if (uep == NULL \|\| error)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1102 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1103 u_free_uhp(uhp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1104 return NULL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1105 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1106 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1107 if (c != UF_ENTRY_END_MAGIC)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1108 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1109 corruption_error("entry end", file_name);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1110 u_free_uhp(uhp);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1111 return NULL;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1112 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1113
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1114 return uhp;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1115 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1116
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1117 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1118 * Serialize "uep" to "fp".
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1119 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1120 static int
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1121 serialize_uep(fp, buf, uep)
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1122 FILE *fp;
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1123 buf_T *buf;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1124 u_entry_T *uep;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1125 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1126 int i;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1127 size_t len;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1128
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1129 put_bytes(fp, (long_u)uep->ue_top, 4);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1130 put_bytes(fp, (long_u)uep->ue_bot, 4);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1131 put_bytes(fp, (long_u)uep->ue_lcount, 4);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1132 put_bytes(fp, (long_u)uep->ue_size, 4);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1133 for (i = 0; i < uep->ue_size; ++i)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1134 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1135 len = STRLEN(uep->ue_array[i]);
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1136 if (put_bytes(fp, (long_u)len, 4) == FAIL)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1137 return FAIL;
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1138 if (len > 0 && fwrite_crypt(buf, uep->ue_array[i], len, fp) != 1)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1139 return FAIL;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1140 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1141 return OK;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1142 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1143
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1144 static u_entry_T *
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1145 unserialize_uep(fp, error, file_name)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1146 FILE *fp;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1147 int *error;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1148 char_u *file_name;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1149 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1150 int i;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1151 u_entry_T *uep;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1152 char_u **array;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1153 char_u *line;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1154 int line_len;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1155
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1156 uep = (u_entry_T *)U_ALLOC_LINE(sizeof(u_entry_T));
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1157 if (uep == NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1158 return NULL;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1159 vim_memset(uep, 0, sizeof(u_entry_T));
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1160 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1161 uep->ue_magic = UE_MAGIC;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1162 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1163 uep->ue_top = get4c(fp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1164 uep->ue_bot = get4c(fp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1165 uep->ue_lcount = get4c(fp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1166 uep->ue_size = get4c(fp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1167 if (uep->ue_size > 0)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1168 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1169 array = (char_u *)U_ALLOC_LINE(sizeof(char_u ) * uep->ue_size);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1170 if (array == NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1171 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1172 *error = TRUE;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1173 return uep;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1174 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1175 vim_memset(array, 0, sizeof(char_u ) uep->ue_size);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1176 }
2232 2e6906bbc5f4 A few more fixes for undo file. Split test in two parts so that it doesn't Bram Moolenaar <bram@vim.org> parents: 2231 diff changeset	1177 else
2e6906bbc5f4 A few more fixes for undo file. Split test in two parts so that it doesn't Bram Moolenaar <bram@vim.org> parents: 2231 diff changeset	1178 array = NULL;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1179 uep->ue_array = array;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1180
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1181 for (i = 0; i < uep->ue_size; ++i)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1182 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1183 line_len = get4c(fp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1184 if (line_len >= 0)
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1185 line = read_string_decrypt(curbuf, fp, line_len);
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1186 else
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1187 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1188 line = NULL;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1189 corruption_error("line length", file_name);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1190 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1191 if (line == NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1192 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1193 *error = TRUE;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1194 return uep;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1195 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1196 array[i] = line;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1197 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1198 return uep;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1199 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1200
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1201 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1202 * Serialize "pos" to "fp".
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1203 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1204 static void
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1205 serialize_pos(pos, fp)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1206 pos_T pos;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1207 FILE *fp;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1208 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1209 put_bytes(fp, (long_u)pos.lnum, 4);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1210 put_bytes(fp, (long_u)pos.col, 4);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1211 #ifdef FEAT_VIRTUALEDIT
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1212 put_bytes(fp, (long_u)pos.coladd, 4);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1213 #else
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1214 put_bytes(fp, (long_u)0, 4);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1215 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1216 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1217
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1218 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1219 * Unserialize the pos_T at the current position in fp.
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1220 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1221 static void
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1222 unserialize_pos(pos, fp)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1223 pos_T *pos;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1224 FILE *fp;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1225 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1226 pos->lnum = get4c(fp);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1227 if (pos->lnum < 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1228 pos->lnum = 0;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1229 pos->col = get4c(fp);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1230 if (pos->col < 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1231 pos->col = 0;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1232 #ifdef FEAT_VIRTUALEDIT
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1233 pos->coladd = get4c(fp);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1234 if (pos->coladd < 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1235 pos->coladd = 0;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1236 #else
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1237 (void)get4c(fp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1238 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1239 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1240
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1241 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1242 * Serialize "info" to "fp".
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1243 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1244 static void
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1245 serialize_visualinfo(info, fp)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1246 visualinfo_T *info;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1247 FILE *fp;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1248 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1249 serialize_pos(info->vi_start, fp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1250 serialize_pos(info->vi_end, fp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1251 put_bytes(fp, (long_u)info->vi_mode, 4);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1252 put_bytes(fp, (long_u)info->vi_curswant, 4);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1253 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1254
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1255 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1256 * Unserialize the visualinfo_T at the current position in fp.
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1257 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1258 static void
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1259 unserialize_visualinfo(info, fp)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1260 visualinfo_T *info;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1261 FILE *fp;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1262 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1263 unserialize_pos(&info->vi_start, fp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1264 unserialize_pos(&info->vi_end, fp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1265 info->vi_mode = get4c(fp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1266 info->vi_curswant = get4c(fp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1267 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1268
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1269 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1270 * Write the pointer to an undo header. Instead of writing the pointer itself
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1271 * we use the sequence number of the header. This is converted back to
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1272 * pointers when reading. */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1273 static void
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1274 put_header_ptr(fp, uhp)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1275 FILE *fp;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1276 u_header_T *uhp;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1277 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1278 put_bytes(fp, (long_u)(uhp != NULL ? uhp->uh_seq : 0), 4);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1279 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1280
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1281 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1282 * Write the undo tree in an undo file.
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1283 * When "name" is not NULL, use it as the name of the undo file.
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1284 * Otherwise use buf->b_ffname to generate the undo file name.
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1285 * "buf" must never be null, buf->b_ffname is used to obtain the original file
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1286 * permissions.
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1287 * "forceit" is TRUE for ":wundo!", FALSE otherwise.
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1288 * "hash[UNDO_HASH_SIZE]" must be the hash value of the buffer text.
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1289 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1290 void
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1291 u_write_undo(name, forceit, buf, hash)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1292 char_u *name;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1293 int forceit;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1294 buf_T *buf;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1295 char_u *hash;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1296 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1297 u_header_T *uhp;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1298 char_u *file_name;
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1299 int mark;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1300 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1301 int headers_written = 0;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1302 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1303 int fd;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1304 FILE *fp = NULL;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1305 int perm;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1306 int write_ok = FALSE;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1307 #ifdef UNIX
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1308 int st_old_valid = FALSE;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1309 struct stat st_old;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1310 struct stat st_new;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1311 #endif
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1312 #ifdef FEAT_CRYPT
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1313 int do_crypt = FALSE;
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1314 #endif
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1315
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1316 if (name == NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1317 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1318 file_name = u_get_undo_file_name(buf->b_ffname, FALSE);
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1319 if (file_name == NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1320 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1321 if (p_verbose > 0)
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1322 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1323 verbose_enter();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1324 smsg((char_u *)
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1325 _("Cannot write undo file in any directory in 'undodir'"));
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1326 verbose_leave();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1327 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1328 return;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1329 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1330 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1331 else
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1332 file_name = name;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1333
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1334 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1335 * Decide about the permission to use for the undo file. If the buffer
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1336 * has a name use the permission of the original file. Otherwise only
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1337 * allow the user to access the undo file.
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1338 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1339 perm = 0600;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1340 if (buf->b_ffname != NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1341 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1342 #ifdef UNIX
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1343 if (mch_stat((char *)buf->b_ffname, &st_old) >= 0)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1344 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1345 perm = st_old.st_mode;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1346 st_old_valid = TRUE;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1347 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1348 #else
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1349 perm = mch_getperm(buf->b_ffname);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1350 if (perm < 0)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1351 perm = 0600;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1352 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1353 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1354
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1355 /* strip any s-bit */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1356 perm = perm & 0777;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1357
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1358 /* If the undo file already exists, verify that it actually is an undo
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1359 * file, and delete it. */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1360 if (mch_getperm(file_name) >= 0)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1361 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1362 if (name == NULL \|\| !forceit)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1363 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1364 /* Check we can read it and it's an undo file. */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1365 fd = mch_open((char *)file_name, O_RDONLY\|O_EXTRA, 0);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1366 if (fd < 0)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1367 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1368 if (name != NULL \|\| p_verbose > 0)
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1369 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1370 if (name == NULL)
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1371 verbose_enter();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1372 smsg((char_u *)
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1373 _("Will not overwrite with undo file, cannot read: %s"),
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1374 file_name);
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1375 if (name == NULL)
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1376 verbose_leave();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1377 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1378 goto theend;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1379 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1380 else
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1381 {
2271 2b33a7678e7b Fix compiler warnings for shadowed variables. Make 'conceal' a long instead Bram Moolenaar <bram@vim.org> parents: 2267 diff changeset	1382 char_u mbuf[UF_START_MAGIC_LEN];
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1383 int len;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1384
2664 033e7b49356c updated for version 7.3.083 Bram Moolenaar <bram@vim.org> parents: 2627 diff changeset	1385 len = read_eintr(fd, mbuf, UF_START_MAGIC_LEN);
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1386 close(fd);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1387 if (len < UF_START_MAGIC_LEN
2271 2b33a7678e7b Fix compiler warnings for shadowed variables. Make 'conceal' a long instead Bram Moolenaar <bram@vim.org> parents: 2267 diff changeset	1388 \|\| memcmp(mbuf, UF_START_MAGIC, UF_START_MAGIC_LEN) != 0)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1389 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1390 if (name != NULL \|\| p_verbose > 0)
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1391 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1392 if (name == NULL)
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1393 verbose_enter();
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1394 smsg((char_u *)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1395 _("Will not overwrite, this is not an undo file: %s"),
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1396 file_name);
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1397 if (name == NULL)
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1398 verbose_leave();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1399 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1400 goto theend;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1401 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1402 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1403 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1404 mch_remove(file_name);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1405 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1406
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1407 /* If there is no undo information at all, quit here after deleting any
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1408 * existing undo file. */
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1409 if (buf->b_u_numhead == 0 && buf->b_u_line_ptr == NULL)
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1410 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1411 if (p_verbose > 0)
2262 771f21e35ec5 Minor typo and docs update. Bram Moolenaar <bram@vim.org> parents: 2251 diff changeset	1412 verb_msg((char_u *)_("Skipping undo file write, nothing to undo"));
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1413 goto theend;
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1414 }
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1415
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1416 fd = mch_open((char *)file_name,
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1417 O_CREAT\|O_EXTRA\|O_WRONLY\|O_EXCL\|O_NOFOLLOW, perm);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1418 if (fd < 0)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1419 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1420 EMSG2(_(e_not_open), file_name);
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1421 goto theend;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1422 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1423 (void)mch_setperm(file_name, perm);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1424 if (p_verbose > 0)
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1425 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1426 verbose_enter();
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1427 smsg((char_u *)_("Writing undo file: %s"), file_name);
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1428 verbose_leave();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1429 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1430
2233 43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1431 #ifdef U_DEBUG
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1432 /* Check there is no problem in undo info before writing. */
2233 43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1433 u_check(FALSE);
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1434 #endif
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1435
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1436 #ifdef UNIX
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1437 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1438 * Try to set the group of the undo file same as the original file. If
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1439 * this fails, set the protection bits for the group same as the
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1440 * protection bits for others.
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1441 */
2367 76b7ba68a098 Fix build problem when fchown() not available. (Gary Johnson) Bram Moolenaar <bram@vim.org> parents: 2348 diff changeset	1442 if (st_old_valid
76b7ba68a098 Fix build problem when fchown() not available. (Gary Johnson) Bram Moolenaar <bram@vim.org> parents: 2348 diff changeset	1443 && mch_stat((char *)file_name, &st_new) >= 0
76b7ba68a098 Fix build problem when fchown() not available. (Gary Johnson) Bram Moolenaar <bram@vim.org> parents: 2348 diff changeset	1444 && st_new.st_gid != st_old.st_gid
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1445 # ifdef HAVE_FCHOWN /* sequent-ptx lacks fchown() */
2367 76b7ba68a098 Fix build problem when fchown() not available. (Gary Johnson) Bram Moolenaar <bram@vim.org> parents: 2348 diff changeset	1446 && fchown(fd, (uid_t)-1, st_old.st_gid) != 0
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1447 # endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1448 )
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1449 mch_setperm(file_name, (perm & 0707) \| ((perm & 07) << 3));
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1450 # ifdef HAVE_SELINUX
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1451 if (buf->b_ffname != NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1452 mch_copy_sec(buf->b_ffname, file_name);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1453 # endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1454 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1455
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1456 fp = fdopen(fd, "w");
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1457 if (fp == NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1458 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1459 EMSG2(_(e_not_open), file_name);
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1460 close(fd);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1461 mch_remove(file_name);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1462 goto theend;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1463 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1464
2233 43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1465 /* Undo must be synced. */
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1466 u_sync(TRUE);
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1467
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1468 /*
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1469 * Write the header.
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1470 */
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1471 if (serialize_header(fp, buf, hash) == FAIL)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1472 goto write_error;
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1473 #ifdef FEAT_CRYPT
2410 8f6106dd3d12 Fix: editing a not encrypted file after a crypted file messed up reading the Bram Moolenaar <bram@vim.org> parents: 2394 diff changeset	1474 if (*buf->b_p_key != NUL)
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1475 do_crypt = TRUE;
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1476 #endif
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1477
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1478 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1479 * Iteratively serialize UHPs and their UEPs from the top down.
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1480 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1481 mark = ++lastmark;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1482 uhp = buf->b_u_oldhead;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1483 while (uhp != NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1484 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1485 /* Serialize current UHP if we haven't seen it */
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1486 if (uhp->uh_walk != mark)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1487 {
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1488 uhp->uh_walk = mark;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1489 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1490 ++headers_written;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1491 #endif
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1492 if (serialize_uhp(fp, buf, uhp) == FAIL)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1493 goto write_error;
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1494 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1495
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1496 /* Now walk through the tree - algorithm from undo_time(). */
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1497 if (uhp->uh_prev.ptr != NULL && uhp->uh_prev.ptr->uh_walk != mark)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1498 uhp = uhp->uh_prev.ptr;
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1499 else if (uhp->uh_alt_next.ptr != NULL
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1500 && uhp->uh_alt_next.ptr->uh_walk != mark)
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1501 uhp = uhp->uh_alt_next.ptr;
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1502 else if (uhp->uh_next.ptr != NULL && uhp->uh_alt_prev.ptr == NULL
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1503 && uhp->uh_next.ptr->uh_walk != mark)
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1504 uhp = uhp->uh_next.ptr;
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1505 else if (uhp->uh_alt_prev.ptr != NULL)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1506 uhp = uhp->uh_alt_prev.ptr;
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1507 else
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1508 uhp = uhp->uh_next.ptr;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1509 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1510
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1511 if (put_bytes(fp, (long_u)UF_HEADER_END_MAGIC, 2) == OK)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1512 write_ok = TRUE;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1513 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1514 if (headers_written != buf->b_u_numhead)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1515 EMSG3("Written %ld headers, but numhead is %ld",
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1516 headers_written, buf->b_u_numhead);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1517 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1518
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1519 write_error:
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1520 fclose(fp);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1521 if (!write_ok)
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1522 EMSG2(_("E829: write error in undo file: %s"), file_name);
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1523
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1524 #if defined(MACOS_CLASSIC) \|\| defined(WIN3264)
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1525 /* Copy file attributes; for systems where this can only be done after
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1526 * closing the file. */
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1527 if (buf->b_ffname != NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1528 (void)mch_copy_file_attribute(buf->b_ffname, file_name);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1529 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1530 #ifdef HAVE_ACL
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1531 if (buf->b_ffname != NULL)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1532 {
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1533 vim_acl_T acl;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1534
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1535 /* For systems that support ACL: get the ACL from the original file. */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1536 acl = mch_get_acl(buf->b_ffname);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1537 mch_set_acl(file_name, acl);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1538 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1539 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1540
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1541 theend:
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1542 #ifdef FEAT_CRYPT
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1543 if (do_crypt)
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1544 crypt_pop_state();
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1545 #endif
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1546 if (file_name != name)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1547 vim_free(file_name);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1548 }
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1549
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1550 /*
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1551 * Load the undo tree from an undo file.
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1552 * If "name" is not NULL use it as the undo file name. This also means being
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1553 * a bit more verbose.
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1554 * Otherwise use curbuf->b_ffname to generate the undo file name.
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1555 * "hash[UNDO_HASH_SIZE]" must be the hash value of the buffer text.
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1556 */
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1557 void
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1558 u_read_undo(name, hash, orig_name)
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1559 char_u *name;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1560 char_u *hash;
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1561 char_u *orig_name;
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1562 {
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1563 char_u *file_name;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1564 FILE *fp;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1565 long version, str_len;
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1566 char_u *line_ptr = NULL;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1567 linenr_T line_lnum;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1568 colnr_T line_colnr;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1569 linenr_T line_count;
2217 120502692d82 Improve the MS-Windows installer. Bram Moolenaar <bram@vim.org> parents: 2215 diff changeset	1570 int num_head = 0;
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1571 long old_header_seq, new_header_seq, cur_header_seq;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1572 long seq_last, seq_cur;
2282 a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	1573 long last_save_nr = 0;
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1574 short old_idx = -1, new_idx = -1, cur_idx = -1;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1575 long num_read_uhps = 0;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1576 time_t seq_time;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1577 int i, j;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1578 int c;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1579 u_header_T *uhp;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1580 u_header_T **uhp_table = NULL;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1581 char_u read_hash[UNDO_HASH_SIZE];
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1582 char_u magic_buf[UF_START_MAGIC_LEN];
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1583 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1584 int *uhp_table_used;
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1585 #endif
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1586 #ifdef UNIX
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1587 struct stat st_orig;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1588 struct stat st_undo;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1589 #endif
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1590 #ifdef FEAT_CRYPT
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1591 int do_decrypt = FALSE;
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1592 #endif
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1593
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1594 if (name == NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1595 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1596 file_name = u_get_undo_file_name(curbuf->b_ffname, TRUE);
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1597 if (file_name == NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1598 return;
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1599
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1600 #ifdef UNIX
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1601 /* For safety we only read an undo file if the owner is equal to the
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1602 * owner of the text file. */
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1603 if (mch_stat((char *)orig_name, &st_orig) >= 0
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1604 && mch_stat((char *)file_name, &st_undo) >= 0
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1605 && st_orig.st_uid != st_undo.st_uid)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1606 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1607 if (p_verbose > 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1608 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1609 verbose_enter();
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1610 smsg((char_u *)_("Not reading undo file, owner differs: %s"),
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1611 file_name);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1612 verbose_leave();
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1613 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1614 return;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1615 }
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1616 #endif
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1617 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1618 else
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1619 file_name = name;
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1620
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1621 if (p_verbose > 0)
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1622 {
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1623 verbose_enter();
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1624 smsg((char_u *)_("Reading undo file: %s"), file_name);
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1625 verbose_leave();
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1626 }
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1627
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1628 fp = mch_fopen((char *)file_name, "r");
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1629 if (fp == NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1630 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1631 if (name != NULL \|\| p_verbose > 0)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1632 EMSG2(_("E822: Cannot open undo file for reading: %s"), file_name);
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1633 goto error;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1634 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1635
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1636 /*
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1637 * Read the undo file header.
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1638 */
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1639 if (fread(magic_buf, UF_START_MAGIC_LEN, 1, fp) != 1
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1640 \|\| memcmp(magic_buf, UF_START_MAGIC, UF_START_MAGIC_LEN) != 0)
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1641 {
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1642 EMSG2(_("E823: Not an undo file: %s"), file_name);
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1643 goto error;
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1644 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1645 version = get2c(fp);
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1646 if (version == UF_VERSION_CRYPT)
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1647 {
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1648 #ifdef FEAT_CRYPT
2251 646d34788036 Fix a few compiler warnings. Fix crash with encrypted undo file. Bram Moolenaar <bram@vim.org> parents: 2245 diff changeset	1649 if (*curbuf->b_p_key == NUL)
646d34788036 Fix a few compiler warnings. Fix crash with encrypted undo file. Bram Moolenaar <bram@vim.org> parents: 2245 diff changeset	1650 {
646d34788036 Fix a few compiler warnings. Fix crash with encrypted undo file. Bram Moolenaar <bram@vim.org> parents: 2245 diff changeset	1651 EMSG2(_("E832: Non-encrypted file has encrypted undo file: %s"),
646d34788036 Fix a few compiler warnings. Fix crash with encrypted undo file. Bram Moolenaar <bram@vim.org> parents: 2245 diff changeset	1652 file_name);
646d34788036 Fix a few compiler warnings. Fix crash with encrypted undo file. Bram Moolenaar <bram@vim.org> parents: 2245 diff changeset	1653 goto error;
646d34788036 Fix a few compiler warnings. Fix crash with encrypted undo file. Bram Moolenaar <bram@vim.org> parents: 2245 diff changeset	1654 }
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1655 if (prepare_crypt_read(fp) == FAIL)
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1656 {
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1657 EMSG2(_("E826: Undo file decryption failed: %s"), file_name);
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1658 goto error;
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1659 }
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1660 do_decrypt = TRUE;
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1661 #else
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1662 EMSG2(_("E827: Undo file is encrypted: %s"), file_name);
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1663 goto error;
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1664 #endif
732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1665 }
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1666 else if (version != UF_VERSION)
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1667 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1668 EMSG2(_("E824: Incompatible undo file: %s"), file_name);
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1669 goto error;
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1670 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1671
2229 d45902a5c61c Fix a few more things for persistent undo. Bram Moolenaar <bram@vim.org> parents: 2223 diff changeset	1672 if (fread(read_hash, UNDO_HASH_SIZE, 1, fp) != 1)
d45902a5c61c Fix a few more things for persistent undo. Bram Moolenaar <bram@vim.org> parents: 2223 diff changeset	1673 {
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1674 corruption_error("hash", file_name);
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1675 goto error;
2229 d45902a5c61c Fix a few more things for persistent undo. Bram Moolenaar <bram@vim.org> parents: 2223 diff changeset	1676 }
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1677 line_count = (linenr_T)get4c(fp);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1678 if (memcmp(hash, read_hash, UNDO_HASH_SIZE) != 0
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1679 \|\| line_count != curbuf->b_ml.ml_line_count)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1680 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1681 if (p_verbose > 0 \|\| name != NULL)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1682 {
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1683 if (name == NULL)
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1684 verbose_enter();
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1685 give_warning((char_u *)
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1686 _("File contents changed, cannot use undo info"), TRUE);
2235 4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1687 if (name == NULL)
4ba83ae8d505 Do not write an undo file if there is nothing to undo. Bram Moolenaar <bram@vim.org> parents: 2234 diff changeset	1688 verbose_leave();
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1689 }
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1690 goto error;
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1691 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1692
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1693 /* Read undo data for "U" command. */
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1694 str_len = get4c(fp);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1695 if (str_len < 0)
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1696 goto error;
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1697 if (str_len > 0)
2239 732cb7b31956 Crypt the text in the undo file if the file itself is crypted. Bram Moolenaar <bram@vim.org> parents: 2238 diff changeset	1698 line_ptr = read_string_decrypt(curbuf, fp, str_len);
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1699 line_lnum = (linenr_T)get4c(fp);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1700 line_colnr = (colnr_T)get4c(fp);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1701 if (line_lnum < 0 \|\| line_colnr < 0)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1702 {
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1703 corruption_error("line lnum/col", file_name);
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1704 goto error;
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1705 }
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1706
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1707 /* Begin general undo data */
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1708 old_header_seq = get4c(fp);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1709 new_header_seq = get4c(fp);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1710 cur_header_seq = get4c(fp);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1711 num_head = get4c(fp);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1712 seq_last = get4c(fp);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1713 seq_cur = get4c(fp);
2229 d45902a5c61c Fix a few more things for persistent undo. Bram Moolenaar <bram@vim.org> parents: 2223 diff changeset	1714 seq_time = get8ctime(fp);
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1715
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1716 /* Optional header fields. */
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1717 for (;;)
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1718 {
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1719 int len = getc(fp);
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1720 int what;
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1721
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1722 if (len == 0 \|\| len == EOF)
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1723 break;
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1724 what = getc(fp);
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1725 switch (what)
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1726 {
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1727 case UF_LAST_SAVE_NR:
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1728 last_save_nr = get4c(fp);
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1729 break;
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1730 default:
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1731 /* field not supported, skip */
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1732 while (--len >= 0)
f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1733 (void)getc(fp);
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1734 }
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1735 }
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1736
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1737 /* uhp_table will store the freshly created undo headers we allocate
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1738 * until we insert them into curbuf. The table remains sorted by the
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1739 * sequence numbers of the headers.
290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1740 * When there are no headers uhp_table is NULL. */
290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1741 if (num_head > 0)
290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1742 {
290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1743 uhp_table = (u_header_T **)U_ALLOC_LINE(
290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1744 num_head * sizeof(u_header_T *));
290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1745 if (uhp_table == NULL)
290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1746 goto error;
290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1747 }
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1748
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1749 while ((c = get2c(fp)) == UF_HEADER_MAGIC)
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1750 {
2223 81b83a19e127 More strict checks for the undo file. Bram Moolenaar <bram@vim.org> parents: 2222 diff changeset	1751 if (num_read_uhps >= num_head)
81b83a19e127 More strict checks for the undo file. Bram Moolenaar <bram@vim.org> parents: 2222 diff changeset	1752 {
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1753 corruption_error("num_head too small", file_name);
2223 81b83a19e127 More strict checks for the undo file. Bram Moolenaar <bram@vim.org> parents: 2222 diff changeset	1754 goto error;
81b83a19e127 More strict checks for the undo file. Bram Moolenaar <bram@vim.org> parents: 2222 diff changeset	1755 }
81b83a19e127 More strict checks for the undo file. Bram Moolenaar <bram@vim.org> parents: 2222 diff changeset	1756
2342 f6540762173d Fixes and improvements for MS-Windows build. Bram Moolenaar <bram@vim.org> parents: 2311 diff changeset	1757 uhp = unserialize_uhp(fp, file_name);
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1758 if (uhp == NULL)
3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1759 goto error;
2233 43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1760 uhp_table[num_read_uhps++] = uhp;
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1761 }
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1762
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1763 if (num_read_uhps != num_head)
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1764 {
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1765 corruption_error("num_head", file_name);
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1766 goto error;
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1767 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1768 if (c != UF_HEADER_END_MAGIC)
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1769 {
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1770 corruption_error("end marker", file_name);
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1771 goto error;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1772 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1773
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1774 #ifdef U_DEBUG
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1775 uhp_table_used = (int *)alloc_clear(
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1776 (unsigned)(sizeof(int) * num_head + 1));
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1777 # define SET_FLAG(j) ++uhp_table_used[j]
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1778 #else
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1779 # define SET_FLAG(j)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1780 #endif
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1781
2238 3d0a7beb0d75 Made reading/writing undo info a bit more robust. Bram Moolenaar <bram@vim.org> parents: 2236 diff changeset	1782 /* We have put all of the headers into a table. Now we iterate through the
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1783 * table and swizzle each sequence number we have stored in uh_*_seq into
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1784 * a pointer corresponding to the header with that sequence number. */
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1785 for (i = 0; i < num_head; i++)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1786 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1787 uhp = uhp_table[i];
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1788 if (uhp == NULL)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1789 continue;
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1790 for (j = 0; j < num_head; j++)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1791 if (uhp_table[j] != NULL && i != j
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1792 && uhp_table[i]->uh_seq == uhp_table[j]->uh_seq)
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1793 {
2233 43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1794 corruption_error("duplicate uh_seq", file_name);
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1795 goto error;
2233 43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1796 }
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1797 for (j = 0; j < num_head; j++)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1798 if (uhp_table[j] != NULL
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1799 && uhp_table[j]->uh_seq == uhp->uh_next.seq)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1800 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1801 uhp->uh_next.ptr = uhp_table[j];
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1802 SET_FLAG(j);
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1803 break;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1804 }
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1805 for (j = 0; j < num_head; j++)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1806 if (uhp_table[j] != NULL
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1807 && uhp_table[j]->uh_seq == uhp->uh_prev.seq)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1808 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1809 uhp->uh_prev.ptr = uhp_table[j];
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1810 SET_FLAG(j);
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1811 break;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1812 }
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1813 for (j = 0; j < num_head; j++)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1814 if (uhp_table[j] != NULL
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1815 && uhp_table[j]->uh_seq == uhp->uh_alt_next.seq)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1816 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1817 uhp->uh_alt_next.ptr = uhp_table[j];
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1818 SET_FLAG(j);
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1819 break;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1820 }
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1821 for (j = 0; j < num_head; j++)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1822 if (uhp_table[j] != NULL
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1823 && uhp_table[j]->uh_seq == uhp->uh_alt_prev.seq)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1824 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1825 uhp->uh_alt_prev.ptr = uhp_table[j];
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1826 SET_FLAG(j);
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1827 break;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1828 }
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1829 if (old_header_seq > 0 && old_idx < 0 && uhp->uh_seq == old_header_seq)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1830 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1831 old_idx = i;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1832 SET_FLAG(i);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1833 }
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1834 if (new_header_seq > 0 && new_idx < 0 && uhp->uh_seq == new_header_seq)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1835 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1836 new_idx = i;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1837 SET_FLAG(i);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1838 }
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1839 if (cur_header_seq > 0 && cur_idx < 0 && uhp->uh_seq == cur_header_seq)
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1840 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1841 cur_idx = i;
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1842 SET_FLAG(i);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1843 }
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1844 }
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1845
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1846 /* Now that we have read the undo info successfully, free the current undo
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1847 * info and use the info from the file. */
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1848 u_blockfree(curbuf);
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1849 curbuf->b_u_oldhead = old_idx < 0 ? NULL : uhp_table[old_idx];
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1850 curbuf->b_u_newhead = new_idx < 0 ? NULL : uhp_table[new_idx];
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1851 curbuf->b_u_curhead = cur_idx < 0 ? NULL : uhp_table[cur_idx];
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1852 curbuf->b_u_line_ptr = line_ptr;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1853 curbuf->b_u_line_lnum = line_lnum;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1854 curbuf->b_u_line_colnr = line_colnr;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1855 curbuf->b_u_numhead = num_head;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1856 curbuf->b_u_seq_last = seq_last;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1857 curbuf->b_u_seq_cur = seq_cur;
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	1858 curbuf->b_u_time_cur = seq_time;
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	1859 curbuf->b_u_save_nr_last = last_save_nr;
2627 fae6fb779a6b updated for version 7.3.048 Bram Moolenaar <bram@vim.org> parents: 2577 diff changeset	1860 curbuf->b_u_save_nr_cur = last_save_nr;
2233 43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1861
43cad213cb7f A bit of cleanup and simplification for undofile. Bram Moolenaar <bram@vim.org> parents: 2232 diff changeset	1862 curbuf->b_u_synced = TRUE;
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1863 vim_free(uhp_table);
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1864
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1865 #ifdef U_DEBUG
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1866 for (i = 0; i < num_head; ++i)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1867 if (uhp_table_used[i] == 0)
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1868 EMSGN("uhp_table entry %ld not used, leaking memory", i);
aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1869 vim_free(uhp_table_used);
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1870 u_check(TRUE);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1871 #endif
2231 aa6412cab544 Various improvements to undo file code to make it more robust. Bram Moolenaar <bram@vim.org> parents: 2230 diff changeset	1872
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1873 if (name != NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1874 smsg((char_u *)_("Finished reading undo file %s"), file_name);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1875 goto theend;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1876
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1877 error:
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	1878 vim_free(line_ptr);
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1879 if (uhp_table != NULL)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1880 {
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1881 for (i = 0; i < num_read_uhps; i++)
ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1882 if (uhp_table[i] != NULL)
2223 81b83a19e127 More strict checks for the undo file. Bram Moolenaar <bram@vim.org> parents: 2222 diff changeset	1883 u_free_uhp(uhp_table[i]);
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1884 vim_free(uhp_table);
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1885 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1886
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1887 theend:
2267 c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1888 #ifdef FEAT_CRYPT
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1889 if (do_decrypt)
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1890 crypt_pop_state();
c08f91142c41 Crypt the swapfile. Bram Moolenaar <bram@vim.org> parents: 2266 diff changeset	1891 #endif
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1892 if (fp != NULL)
2311 ccda151dde4e Support completion for ":find". (Nazri Ramliy) Bram Moolenaar <bram@vim.org> parents: 2289 diff changeset	1893 fclose(fp);
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1894 if (file_name != name)
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1895 vim_free(file_name);
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1896 return;
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1897 }
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1898
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1899 #endif /* FEAT_PERSISTENT_UNDO */
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1900
f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	1901
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1902 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1903 * If 'cpoptions' contains 'u': Undo the previous undo or redo (vi compatible).
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1904 * If 'cpoptions' does not contain 'u': Always undo.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1905 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1906 void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1907 u_undo(count)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1908 int count;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1909 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1910 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1911 * If we get an undo command while executing a macro, we behave like the
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1912 * original vi. If this happens twice in one macro the result will not
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1913 * be compatible.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1914 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1915 if (curbuf->b_u_synced == FALSE)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1916 {
825 6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	1917 u_sync(TRUE);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1918 count = 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1919 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1920
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1921 if (vim_strchr(p_cpo, CPO_UNDO) == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1922 undo_undoes = TRUE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1923 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1924 undo_undoes = !undo_undoes;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1925 u_doit(count);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1926 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1927
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1928 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1929 * If 'cpoptions' contains 'u': Repeat the previous undo or redo.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1930 * If 'cpoptions' does not contain 'u': Always redo.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1931 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1932 void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1933 u_redo(count)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1934 int count;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1935 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1936 if (vim_strchr(p_cpo, CPO_UNDO) == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1937 undo_undoes = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1938 u_doit(count);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1939 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1940
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1941 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1942 * Undo or redo, depending on 'undo_undoes', 'count' times.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1943 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1944 static void
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1945 u_doit(startcount)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1946 int startcount;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1947 {
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1948 int count = startcount;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1949
632 b6632d553df3 updated for version 7.0182 vimboss parents: 481 diff changeset	1950 if (!undo_allowed())
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1951 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1952
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1953 u_newcount = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1954 u_oldcount = 0;
179 7fd70926e2e1 updated for version 7.0055 vimboss parents: 168 diff changeset	1955 if (curbuf->b_ml.ml_flags & ML_EMPTY)
7fd70926e2e1 updated for version 7.0055 vimboss parents: 168 diff changeset	1956 u_oldcount = -1;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1957 while (count--)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1958 {
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	1959 /* Do the change warning now, so that it triggers FileChangedRO when
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	1960 * needed. This may cause the file to be reloaded, that must happen
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	1961 * before we do anything, because it may change curbuf->b_u_curhead
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	1962 * and more. */
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	1963 change_warning(0);
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	1964
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1965 if (undo_undoes)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1966 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1967 if (curbuf->b_u_curhead == NULL) /* first undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1968 curbuf->b_u_curhead = curbuf->b_u_newhead;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1969 else if (p_ul > 0) /* multi level undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1970 /* get next undo */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	1971 curbuf->b_u_curhead = curbuf->b_u_curhead->uh_next.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1972 /* nothing to undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1973 if (curbuf->b_u_numhead == 0 \|\| curbuf->b_u_curhead == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1974 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1975 /* stick curbuf->b_u_curhead at end */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1976 curbuf->b_u_curhead = curbuf->b_u_oldhead;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1977 beep_flush();
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1978 if (count == startcount - 1)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1979 {
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1980 MSG(_("Already at oldest change"));
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1981 return;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1982 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1983 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1984 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1985
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1986 u_undoredo(TRUE);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1987 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1988 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1989 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1990 if (curbuf->b_u_curhead == NULL \|\| p_ul <= 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1991 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1992 beep_flush(); /* nothing to redo */
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1993 if (count == startcount - 1)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1994 {
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1995 MSG(_("Already at newest change"));
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1996 return;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	1997 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1998 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	1999 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2000
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2001 u_undoredo(FALSE);
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2002
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2003 /* Advance for next redo. Set "newhead" when at the end of the
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2004 * redoable changes. */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2005 if (curbuf->b_u_curhead->uh_prev.ptr == NULL)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2006 curbuf->b_u_newhead = curbuf->b_u_curhead;
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2007 curbuf->b_u_curhead = curbuf->b_u_curhead->uh_prev.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2008 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2009 }
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2010 u_undo_end(undo_undoes, FALSE);
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2011 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2012
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2013 /*
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2014 * Undo or redo over the timeline.
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2015 * When "step" is negative go back in time, otherwise goes forward in time.
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2016 * When "sec" is FALSE make "step" steps, when "sec" is TRUE use "step" as
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2017 * seconds.
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2018 * When "file" is TRUE use "step" as a number of file writes.
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2019 * When "absolute" is TRUE use "step" as the sequence number to jump to.
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2020 * "sec" must be FALSE then.
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2021 */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2022 void
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2023 undo_time(step, sec, file, absolute)
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2024 long step;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2025 int sec;
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2026 int file;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2027 int absolute;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2028 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2029 long target;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2030 long closest;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2031 long closest_start;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2032 long closest_seq = 0;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2033 long val;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2034 u_header_T *uhp;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2035 u_header_T *last;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2036 int mark;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2037 int nomark;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2038 int round;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2039 int dosec = sec;
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2040 int dofile = file;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2041 int above = FALSE;
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2042 int did_undo = TRUE;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2043
766 f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	2044 /* First make sure the current undoable change is synced. */
f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	2045 if (curbuf->b_u_synced == FALSE)
825 6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	2046 u_sync(TRUE);
766 f0d0d3d3a1e2 updated for version 7.0225 vimboss parents: 758 diff changeset	2047
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2048 u_newcount = 0;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2049 u_oldcount = 0;
179 7fd70926e2e1 updated for version 7.0055 vimboss parents: 168 diff changeset	2050 if (curbuf->b_ml.ml_flags & ML_EMPTY)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2051 u_oldcount = -1;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2052
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2053 /* "target" is the node below which we want to be.
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2054 * Init "closest" to a value we can't reach. */
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2055 if (absolute)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2056 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2057 target = step;
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2058 closest = -1;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2059 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2060 else
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2061 {
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2062 /* When doing computations with time_t subtract starttime, because
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2063 * time_t converted to a long may result in a wrong number. */
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2064 if (dosec)
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	2065 target = (long)(curbuf->b_u_time_cur - starttime) + step;
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2066 else if (dofile)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2067 {
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2068 if (step < 0)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2069 {
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2070 /* Going back to a previous write. If there were changes after
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2071 * the last write, count that as moving one file-write, so
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2072 * that ":earlier 1f" undoes all changes since the last save. */
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2073 uhp = curbuf->b_u_curhead;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2074 if (uhp != NULL)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2075 uhp = uhp->uh_next.ptr;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2076 else
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2077 uhp = curbuf->b_u_newhead;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2078 if (uhp != NULL && uhp->uh_save_nr != 0)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2079 /* "uh_save_nr" was set in the last block, that means
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2080 * there were no changes since the last write */
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2081 target = curbuf->b_u_save_nr_cur + step;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2082 else
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2083 /* count the changes since the last write as one step */
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2084 target = curbuf->b_u_save_nr_cur + step + 1;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2085 if (target <= 0)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2086 /* Go to before first write: before the oldest change. Use
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2087 * the sequence number for that. */
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2088 dofile = FALSE;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2089 }
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2090 else
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2091 {
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2092 /* Moving forward to a newer write. */
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2093 target = curbuf->b_u_save_nr_cur + step;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2094 if (target > curbuf->b_u_save_nr_last)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2095 {
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2096 /* Go to after last write: after the latest change. Use
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2097 * the sequence number for that. */
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2098 target = curbuf->b_u_seq_last + 1;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2099 dofile = FALSE;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2100 }
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2101 }
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2102 }
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2103 else
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2104 target = curbuf->b_u_seq_cur + step;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2105 if (step < 0)
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2106 {
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2107 if (target < 0)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2108 target = 0;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2109 closest = -1;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2110 }
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2111 else
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2112 {
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2113 if (dosec)
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2114 closest = (long)(time(NULL) - starttime + 1);
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2115 else if (dofile)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2116 closest = curbuf->b_u_save_nr_last + 2;
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2117 else
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2118 closest = curbuf->b_u_seq_last + 2;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2119 if (target >= closest)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2120 target = closest - 1;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2121 }
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2122 }
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2123 closest_start = closest;
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2124 closest_seq = curbuf->b_u_seq_cur;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2125
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2126 /*
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2127 * May do this twice:
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2128 * 1. Search for "target", update "closest" to the best match found.
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2129 * 2. If "target" not found search for "closest".
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2130 *
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2131 * When using the closest time we use the sequence number in the second
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2132 * round, because there may be several entries with the same time.
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2133 */
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2134 for (round = 1; round <= 2; ++round)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2135 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2136 /* Find the path from the current state to where we want to go. The
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2137 * desired state can be anywhere in the undo tree, need to go all over
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2138 * it. We put "nomark" in uh_walk where we have been without success,
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2139 * "mark" where it could possibly be. */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2140 mark = ++lastmark;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2141 nomark = ++lastmark;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2142
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2143 if (curbuf->b_u_curhead == NULL) /* at leaf of the tree */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2144 uhp = curbuf->b_u_newhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2145 else
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2146 uhp = curbuf->b_u_curhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2147
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2148 while (uhp != NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2149 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2150 uhp->uh_walk = mark;
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2151 if (dosec)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2152 val = (long)(uhp->uh_time - starttime);
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2153 else if (dofile)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2154 val = uhp->uh_save_nr;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2155 else
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2156 val = uhp->uh_seq;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2157
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2158 if (round == 1 && !(dofile && val == 0))
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2159 {
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2160 /* Remember the header that is closest to the target.
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2161 * It must be at least in the right direction (checked with
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2162 * "b_u_seq_cur"). When the timestamp is equal find the
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2163 * highest/lowest sequence number. */
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2164 if ((step < 0 ? uhp->uh_seq <= curbuf->b_u_seq_cur
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2165 : uhp->uh_seq > curbuf->b_u_seq_cur)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2166 && ((dosec && val == closest)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2167 ? (step < 0
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2168 ? uhp->uh_seq < closest_seq
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2169 : uhp->uh_seq > closest_seq)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2170 : closest == closest_start
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2171 \|\| (val > target
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2172 ? (closest > target
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2173 ? val - target <= closest - target
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2174 : val - target <= target - closest)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2175 : (closest > target
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2176 ? target - val <= closest - target
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2177 : target - val <= target - closest))))
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2178 {
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2179 closest = val;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2180 closest_seq = uhp->uh_seq;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2181 }
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2182 }
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2183
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2184 /* Quit searching when we found a match. But when searching for a
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2185 * time we need to continue looking for the best uh_seq. */
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2186 if (target == val && !dosec)
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2187 {
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2188 target = uhp->uh_seq;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2189 break;
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2190 }
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2191
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2192 /* go down in the tree if we haven't been there */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2193 if (uhp->uh_prev.ptr != NULL && uhp->uh_prev.ptr->uh_walk != nomark
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2194 && uhp->uh_prev.ptr->uh_walk != mark)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2195 uhp = uhp->uh_prev.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2196
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2197 /* go to alternate branch if we haven't been there */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2198 else if (uhp->uh_alt_next.ptr != NULL
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2199 && uhp->uh_alt_next.ptr->uh_walk != nomark
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2200 && uhp->uh_alt_next.ptr->uh_walk != mark)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2201 uhp = uhp->uh_alt_next.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2202
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2203 /* go up in the tree if we haven't been there and we are at the
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2204 * start of alternate branches */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2205 else if (uhp->uh_next.ptr != NULL && uhp->uh_alt_prev.ptr == NULL
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2206 && uhp->uh_next.ptr->uh_walk != nomark
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2207 && uhp->uh_next.ptr->uh_walk != mark)
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2208 {
95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2209 /* If still at the start we don't go through this change. */
95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2210 if (uhp == curbuf->b_u_curhead)
95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2211 uhp->uh_walk = nomark;
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2212 uhp = uhp->uh_next.ptr;
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2213 }
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2214
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2215 else
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2216 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2217 /* need to backtrack; mark this node as useless */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2218 uhp->uh_walk = nomark;
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2219 if (uhp->uh_alt_prev.ptr != NULL)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2220 uhp = uhp->uh_alt_prev.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2221 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2222 uhp = uhp->uh_next.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2223 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2224 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2225
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2226 if (uhp != NULL) /* found it */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2227 break;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2228
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2229 if (absolute)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2230 {
2214 f8222d1f9a73 Included patch for persistent undo. Lots of changes and added test. Bram Moolenaar <bram@vim.org> parents: 2210 diff changeset	2231 EMSGN(_("E830: Undo number %ld not found"), step);
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2232 return;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2233 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2234
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2235 if (closest == closest_start)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2236 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2237 if (step < 0)
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2238 MSG(_("Already at oldest change"));
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2239 else
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2240 MSG(_("Already at newest change"));
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2241 return;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2242 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2243
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2244 target = closest_seq;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2245 dosec = FALSE;
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2246 dofile = FALSE;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2247 if (step < 0)
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2248 above = TRUE; /* stop above the header */
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2249 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2250
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2251 /* If we found it: Follow the path to go to where we want to be. */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2252 if (uhp != NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2253 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2254 /*
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2255 * First go up the tree as much as needed.
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2256 */
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2257 while (!got_int)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2258 {
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2259 /* Do the change warning now, for the same reason as above. */
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2260 change_warning(0);
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2261
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2262 uhp = curbuf->b_u_curhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2263 if (uhp == NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2264 uhp = curbuf->b_u_newhead;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2265 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2266 uhp = uhp->uh_next.ptr;
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2267 if (uhp == NULL \|\| uhp->uh_walk != mark
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2268 \|\| (uhp->uh_seq == target && !above))
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2269 break;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2270 curbuf->b_u_curhead = uhp;
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2271 u_undoredo(TRUE);
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2272 uhp->uh_walk = nomark; /* don't go back down here */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2273 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2274
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2275 /*
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2276 * And now go down the tree (redo), branching off where needed.
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2277 */
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2278 while (!got_int)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2279 {
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2280 /* Do the change warning now, for the same reason as above. */
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2281 change_warning(0);
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2282
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2283 uhp = curbuf->b_u_curhead;
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2284 if (uhp == NULL)
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2285 break;
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2286
1056 e6d25347de2c updated for version 7.0-182 vimboss parents: 944 diff changeset	2287 /* Go back to the first branch with a mark. */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2288 while (uhp->uh_alt_prev.ptr != NULL
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2289 && uhp->uh_alt_prev.ptr->uh_walk == mark)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2290 uhp = uhp->uh_alt_prev.ptr;
1056 e6d25347de2c updated for version 7.0-182 vimboss parents: 944 diff changeset	2291
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2292 /* Find the last branch with a mark, that's the one. */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2293 last = uhp;
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2294 while (last->uh_alt_next.ptr != NULL
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2295 && last->uh_alt_next.ptr->uh_walk == mark)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2296 last = last->uh_alt_next.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2297 if (last != uhp)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2298 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2299 /* Make the used branch the first entry in the list of
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2300 * alternatives to make "u" and CTRL-R take this branch. */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2301 while (uhp->uh_alt_prev.ptr != NULL)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2302 uhp = uhp->uh_alt_prev.ptr;
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2303 if (last->uh_alt_next.ptr != NULL)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2304 last->uh_alt_next.ptr->uh_alt_prev.ptr =
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2305 last->uh_alt_prev.ptr;
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2306 last->uh_alt_prev.ptr->uh_alt_next.ptr = last->uh_alt_next.ptr;
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2307 last->uh_alt_prev.ptr = NULL;
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2308 last->uh_alt_next.ptr = uhp;
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2309 uhp->uh_alt_prev.ptr = last;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2310
2181 f838615313cd updated for version 7.2.441 Bram Moolenaar <bram@vim.org> parents: 2165 diff changeset	2311 if (curbuf->b_u_oldhead == uhp)
f838615313cd updated for version 7.2.441 Bram Moolenaar <bram@vim.org> parents: 2165 diff changeset	2312 curbuf->b_u_oldhead = last;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2313 uhp = last;
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2314 if (uhp->uh_next.ptr != NULL)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2315 uhp->uh_next.ptr->uh_prev.ptr = uhp;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2316 }
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2317 curbuf->b_u_curhead = uhp;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2318
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2319 if (uhp->uh_walk != mark)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2320 break; /* must have reached the target */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2321
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2322 /* Stop when going backwards in time and didn't find the exact
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2323 * header we were looking for. */
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2324 if (uhp->uh_seq == target && above)
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2325 {
95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2326 curbuf->b_u_seq_cur = target - 1;
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2327 break;
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2328 }
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2329
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2330 u_undoredo(FALSE);
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2331
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2332 /* Advance "curhead" to below the header we last used. If it
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2333 * becomes NULL then we need to set "newhead" to this leaf. */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2334 if (uhp->uh_prev.ptr == NULL)
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2335 curbuf->b_u_newhead = uhp;
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2336 curbuf->b_u_curhead = uhp->uh_prev.ptr;
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2337 did_undo = FALSE;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2338
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2339 if (uhp->uh_seq == target) /* found it! */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2340 break;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2341
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2342 uhp = uhp->uh_prev.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2343 if (uhp == NULL \|\| uhp->uh_walk != mark)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2344 {
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2345 /* Need to redo more but can't find it... */
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2346 EMSG2(_(e_intern2), "undo_time()");
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2347 break;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2348 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2349 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2350 }
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2351 u_undo_end(did_undo, absolute);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2352 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2353
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2354 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2355 * u_undoredo: common code for undo and redo
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2356 *
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2357 * The lines in the file are replaced by the lines in the entry list at
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2358 * curbuf->b_u_curhead. The replaced lines in the file are saved in the entry
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2359 * list for the next undo/redo.
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2360 *
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2361 * When "undo" is TRUE we go up in the tree, when FALSE we go down.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2362 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2363 static void
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2364 u_undoredo(undo)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2365 int undo;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2366 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2367 char_u **newarray = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2368 linenr_T oldsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2369 linenr_T newsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2370 linenr_T top, bot;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2371 linenr_T lnum;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2372 linenr_T newlnum = MAXLNUM;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2373 long i;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2374 u_entry_T uep, nuep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2375 u_entry_T *newlist = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2376 int old_flags;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2377 int new_flags;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2378 pos_T namedm[NMARKS];
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2379 #ifdef FEAT_VISUAL
a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2380 visualinfo_T visualinfo;
a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2381 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2382 int empty_buffer; /* buffer became empty */
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2383 u_header_T *curhead = curbuf->b_u_curhead;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2384
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2385 #ifdef FEAT_AUTOCMD
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2386 /* Don't want autocommands using the undo structures here, they are
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2387 * invalid till the end. */
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2388 block_autocmds();
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2389 #endif
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2390
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2391 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2392 u_check(FALSE);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2393 #endif
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2394 old_flags = curhead->uh_flags;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2395 new_flags = (curbuf->b_changed ? UH_CHANGED : 0) +
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2396 ((curbuf->b_ml.ml_flags & ML_EMPTY) ? UH_EMPTYBUF : 0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2397 setpcmark();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2398
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2399 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2400 * save marks before undo/redo
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2401 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2402 mch_memmove(namedm, curbuf->b_namedm, sizeof(pos_T) * NMARKS);
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2403 #ifdef FEAT_VISUAL
a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2404 visualinfo = curbuf->b_visual;
a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2405 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2406 curbuf->b_op_start.lnum = curbuf->b_ml.ml_line_count;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2407 curbuf->b_op_start.col = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2408 curbuf->b_op_end.lnum = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2409 curbuf->b_op_end.col = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2410
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2411 for (uep = curhead->uh_entry; uep != NULL; uep = nuep)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2412 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2413 top = uep->ue_top;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2414 bot = uep->ue_bot;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2415 if (bot == 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2416 bot = curbuf->b_ml.ml_line_count + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2417 if (top > curbuf->b_ml.ml_line_count \|\| top >= bot
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2418 \|\| bot > curbuf->b_ml.ml_line_count + 1)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2419 {
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2420 #ifdef FEAT_AUTOCMD
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2421 unblock_autocmds();
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2422 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2423 EMSG(_("E438: u_undo: line numbers wrong"));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2424 changed(); /* don't want UNCHANGED now */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2425 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2426 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2427
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2428 oldsize = bot - top - 1; /* number of lines before undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2429 newsize = uep->ue_size; /* number of lines after undo */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2430
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2431 if (top < newlnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2432 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2433 /* If the saved cursor is somewhere in this undo block, move it to
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2434 * the remembered position. Makes "gwap" put the cursor back
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2435 * where it was. */
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2436 lnum = curhead->uh_cursor.lnum;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2437 if (lnum >= top && lnum <= top + newsize + 1)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2438 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2439 curwin->w_cursor = curhead->uh_cursor;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2440 newlnum = curwin->w_cursor.lnum - 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2441 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2442 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2443 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2444 /* Use the first line that actually changed. Avoids that
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2445 * undoing auto-formatting puts the cursor in the previous
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2446 * line. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2447 for (i = 0; i < newsize && i < oldsize; ++i)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2448 if (STRCMP(uep->ue_array[i], ml_get(top + 1 + i)) != 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2449 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2450 if (i == newsize && newlnum == MAXLNUM && uep->ue_next == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2451 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2452 newlnum = top;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2453 curwin->w_cursor.lnum = newlnum + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2454 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2455 else if (i < newsize)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2456 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2457 newlnum = top + i;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2458 curwin->w_cursor.lnum = newlnum + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2459 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2460 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2461 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2462
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2463 empty_buffer = FALSE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2464
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2465 /* delete the lines between top and bot and save them in newarray */
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	2466 if (oldsize > 0)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2467 {
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	2468 if ((newarray = (char_u **)U_ALLOC_LINE(
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	2469 sizeof(char_u ) oldsize)) == NULL)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2470 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2471 do_outofmem_msg((long_u)(sizeof(char_u ) oldsize));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2472 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2473 * We have messed up the entry list, repair is impossible.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2474 * we have to free the rest of the list.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2475 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2476 while (uep != NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2477 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2478 nuep = uep->ue_next;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2479 u_freeentry(uep, uep->ue_size);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2480 uep = nuep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2481 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2482 break;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2483 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2484 /* delete backwards, it goes faster in most cases */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2485 for (lnum = bot - 1, i = oldsize; --i >= 0; --lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2486 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2487 /* what can we do when we run out of memory? */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2488 if ((newarray[i] = u_save_line(lnum)) == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2489 do_outofmem_msg((long_u)0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2490 /* remember we deleted the last line in the buffer, and a
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2491 * dummy empty line will be inserted */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2492 if (curbuf->b_ml.ml_line_count == 1)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2493 empty_buffer = TRUE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2494 ml_delete(lnum, FALSE);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2495 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2496 }
414 8ab9c77240d4 updated for version 7.0108 vimboss parents: 407 diff changeset	2497 else
8ab9c77240d4 updated for version 7.0108 vimboss parents: 407 diff changeset	2498 newarray = NULL;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2499
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2500 /* insert the lines in u_array between top and bot */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2501 if (newsize)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2502 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2503 for (lnum = top, i = 0; i < newsize; ++i, ++lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2504 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2505 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2506 * If the file is empty, there is an empty line 1 that we
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2507 * should get rid of, by replacing it with the new line
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2508 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2509 if (empty_buffer && lnum == 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2510 ml_replace((linenr_T)1, uep->ue_array[i], TRUE);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2511 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2512 ml_append(lnum, uep->ue_array[i], (colnr_T)0, FALSE);
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	2513 vim_free(uep->ue_array[i]);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2514 }
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	2515 vim_free((char_u *)uep->ue_array);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2516 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2517
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2518 /* adjust marks */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2519 if (oldsize != newsize)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2520 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2521 mark_adjust(top + 1, top + oldsize, (long)MAXLNUM,
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2522 (long)newsize - (long)oldsize);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2523 if (curbuf->b_op_start.lnum > top + oldsize)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2524 curbuf->b_op_start.lnum += newsize - oldsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2525 if (curbuf->b_op_end.lnum > top + oldsize)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2526 curbuf->b_op_end.lnum += newsize - oldsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2527 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2528
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2529 changed_lines(top + 1, 0, bot, newsize - oldsize);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2530
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2531 /* set '[ and '] mark */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2532 if (top + 1 < curbuf->b_op_start.lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2533 curbuf->b_op_start.lnum = top + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2534 if (newsize == 0 && top + 1 > curbuf->b_op_end.lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2535 curbuf->b_op_end.lnum = top + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2536 else if (top + newsize > curbuf->b_op_end.lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2537 curbuf->b_op_end.lnum = top + newsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2538
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2539 u_newcount += newsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2540 u_oldcount += oldsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2541 uep->ue_size = oldsize;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2542 uep->ue_array = newarray;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2543 uep->ue_bot = top + newsize + 1;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2544
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2545 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2546 * insert this entry in front of the new entry list
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2547 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2548 nuep = uep->ue_next;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2549 uep->ue_next = newlist;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2550 newlist = uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2551 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2552
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2553 curhead->uh_entry = newlist;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2554 curhead->uh_flags = new_flags;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2555 if ((old_flags & UH_EMPTYBUF) && bufempty())
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2556 curbuf->b_ml.ml_flags \|= ML_EMPTY;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2557 if (old_flags & UH_CHANGED)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2558 changed();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2559 else
33 f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	2560 #ifdef FEAT_NETBEANS_INTG
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	2561 /* per netbeans undo rules, keep it as modified */
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	2562 if (!isNetbeansModified(curbuf))
f6033dcbaf31 updated for version 7.0020 vimboss parents: 7 diff changeset	2563 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2564 unchanged(curbuf, FALSE);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2565
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2566 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2567 * restore marks from before undo/redo
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2568 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2569 for (i = 0; i < NMARKS; ++i)
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2570 if (curhead->uh_namedm[i].lnum != 0)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2571 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2572 curbuf->b_namedm[i] = curhead->uh_namedm[i];
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2573 curhead->uh_namedm[i] = namedm[i];
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2574 }
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2575 #ifdef FEAT_VISUAL
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2576 if (curhead->uh_visual.vi_start.lnum != 0)
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2577 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2578 curbuf->b_visual = curhead->uh_visual;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2579 curhead->uh_visual = visualinfo;
692 a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2580 }
a28f83d37113 updated for version 7.0208 vimboss parents: 634 diff changeset	2581 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2582
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2583 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2584 * If the cursor is only off by one line, put it at the same position as
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2585 * before starting the change (for the "o" command).
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2586 * Otherwise the cursor should go to the first undone line.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2587 */
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2588 if (curhead->uh_cursor.lnum + 1 == curwin->w_cursor.lnum
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2589 && curwin->w_cursor.lnum > 1)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2590 --curwin->w_cursor.lnum;
2501 c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2591 if (curwin->w_cursor.lnum <= curbuf->b_ml.ml_line_count)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2592 {
2501 c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2593 if (curhead->uh_cursor.lnum == curwin->w_cursor.lnum)
c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2594 {
c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2595 curwin->w_cursor.col = curhead->uh_cursor.col;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2596 #ifdef FEAT_VIRTUALEDIT
2501 c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2597 if (virtual_active() && curhead->uh_cursor_vcol >= 0)
c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2598 coladvance((colnr_T)curhead->uh_cursor_vcol);
c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2599 else
c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2600 curwin->w_cursor.coladd = 0;
c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2601 #endif
c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2602 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2603 else
2501 c43e99e9baaf Fix: ml_get errors when using undo with 'virtualedit'. Bram Moolenaar <bram@vim.org> parents: 2482 diff changeset	2604 beginline(BL_SOL \| BL_FIX);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2605 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2606 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2607 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2608 /* We get here with the current cursor line being past the end (eg
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2609 * after adding lines at the end of the file, and then undoing it).
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2610 * check_cursor() will move the cursor to the last line. Move it to
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2611 * the first column here. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2612 curwin->w_cursor.col = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2613 #ifdef FEAT_VIRTUALEDIT
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2614 curwin->w_cursor.coladd = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2615 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2616 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2617
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2618 /* Make sure the cursor is on an existing line and column. */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2619 check_cursor();
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2620
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2621 /* Remember where we are for "g-" and ":earlier 10s". */
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2622 curbuf->b_u_seq_cur = curhead->uh_seq;
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2623 if (undo)
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2624 /* We are below the previous undo. However, to make ":earlier 1s"
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2625 * work we compute this as being just above the just undone change. */
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2626 --curbuf->b_u_seq_cur;
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2627
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2628 /* Remember where we are for ":earlier 1f" and ":later 1f". */
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2629 if (curhead->uh_save_nr != 0)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2630 {
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2631 if (undo)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2632 curbuf->b_u_save_nr_cur = curhead->uh_save_nr - 1;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2633 else
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2634 curbuf->b_u_save_nr_cur = curhead->uh_save_nr;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2635 }
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2636
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2637 /* The timestamp can be the same for multiple changes, just use the one of
f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2638 * the undone/redone change. */
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	2639 curbuf->b_u_time_cur = curhead->uh_time;
2189 cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2640
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2641 #ifdef FEAT_AUTOCMD
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2642 unblock_autocmds();
cb94c42c0e1a updated for version 7.2.445 Bram Moolenaar <bram@vim.org> parents: 2181 diff changeset	2643 #endif
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2644 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2645 u_check(FALSE);
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	2646 #endif
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2647 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2648
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2649 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2650 * If we deleted or added lines, report the number of less/more lines.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2651 * Otherwise, report the number of changes (this may be incorrect
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2652 * in some cases, but it's better than nothing).
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2653 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2654 static void
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2655 u_undo_end(did_undo, absolute)
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2656 int did_undo; /* just did an undo */
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2657 int absolute; /* used ":undo N" */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2658 {
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2659 char *msgstr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2660 u_header_T *uhp;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2661 char_u msgbuf[80];
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2662
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2663 #ifdef FEAT_FOLDING
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2664 if ((fdo_flags & FDO_UNDO) && KeyTyped)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2665 foldOpenCursor();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2666 #endif
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2667
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2668 if (global_busy /* no messages now, wait until global is finished */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2669 \|\| !messaging()) /* 'lazyredraw' set, don't do messages now */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2670 return;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2671
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2672 if (curbuf->b_ml.ml_flags & ML_EMPTY)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2673 --u_newcount;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2674
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2675 u_oldcount -= u_newcount;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2676 if (u_oldcount == -1)
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2677 msgstr = N_("more line");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2678 else if (u_oldcount < 0)
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2679 msgstr = N_("more lines");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2680 else if (u_oldcount == 1)
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2681 msgstr = N_("line less");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2682 else if (u_oldcount > 1)
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2683 msgstr = N_("fewer lines");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2684 else
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2685 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2686 u_oldcount = u_newcount;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2687 if (u_newcount == 1)
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2688 msgstr = N_("change");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2689 else
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2690 msgstr = N_("changes");
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2691 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2692
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2693 if (curbuf->b_u_curhead != NULL)
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2694 {
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2695 /* For ":undo N" we prefer a "after #N" message. */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2696 if (absolute && curbuf->b_u_curhead->uh_next.ptr != NULL)
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2697 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2698 uhp = curbuf->b_u_curhead->uh_next.ptr;
798 95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2699 did_undo = FALSE;
95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2700 }
95dac6af3b3a updated for version 7.0232 vimboss parents: 794 diff changeset	2701 else if (did_undo)
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2702 uhp = curbuf->b_u_curhead;
f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2703 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2704 uhp = curbuf->b_u_curhead->uh_next.ptr;
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2705 }
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2706 else
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2707 uhp = curbuf->b_u_newhead;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2708
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2709 if (uhp == NULL)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2710 *msgbuf = NUL;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2711 else
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2712 u_add_time(msgbuf, sizeof(msgbuf), uhp->uh_time);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2713
2282 a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	2714 #ifdef FEAT_CONCEAL
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	2715 {
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	2716 win_T *wp;
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	2717
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	2718 FOR_ALL_WINDOWS(wp)
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	2719 {
2378 85b7dc8da5eb Add the 'concealcursor' option to decide when the cursor line is to be Bram Moolenaar <bram@vim.org> parents: 2367 diff changeset	2720 if (wp->w_buffer == curbuf && wp->w_p_cole > 0)
2282 a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	2721 redraw_win_later(wp, NOT_VALID);
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	2722 }
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	2723 }
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	2724 #endif
a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	2725
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2726 smsg((char_u *)_("%ld %s; %s #%ld %s"),
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2727 u_oldcount < 0 ? -u_oldcount : u_oldcount,
944 b2dcb8457067 updated for version 7.0-070 vimboss parents: 912 diff changeset	2728 _(msgstr),
794 f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2729 did_undo ? _("before") : _("after"),
f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2730 uhp == NULL ? 0L : uhp->uh_seq,
f19994020dad updated for version 7.0231 vimboss parents: 777 diff changeset	2731 msgbuf);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2732 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2733
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2734 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2735 * u_sync: stop adding to the current entry list
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2736 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2737 void
825 6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	2738 u_sync(force)
6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	2739 int force; /* Also sync when no_u_sync is set. */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2740 {
825 6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	2741 /* Skip it when already synced or syncing is disabled. */
6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	2742 if (curbuf->b_u_synced \|\| (!force && no_u_sync > 0))
6675076019ae updated for version 7.0d vimboss parents: 810 diff changeset	2743 return;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2744 #if defined(FEAT_XIM) && defined(FEAT_GUI_GTK)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2745 if (im_is_preediting())
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2746 return; /* XIM is busy, don't break an undo sequence */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2747 #endif
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2748 if (p_ul < 0)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2749 curbuf->b_u_synced = TRUE; /* no entries, nothing to do */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2750 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2751 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2752 u_getbot(); /* compute ue_bot of previous u_save */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2753 curbuf->b_u_curhead = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2754 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2755 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2756
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2757 /*
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2758 * ":undolist": List the leafs of the undo tree
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2759 */
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2760 void
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2761 ex_undolist(eap)
2181 f838615313cd updated for version 7.2.441 Bram Moolenaar <bram@vim.org> parents: 2165 diff changeset	2762 exarg_T *eap UNUSED;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2763 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2764 garray_T ga;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2765 u_header_T *uhp;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2766 int mark;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2767 int nomark;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2768 int changes = 1;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2769 int i;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2770
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2771 /*
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2772 * 1: walk the tree to find all leafs, put the info in "ga".
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2773 * 2: sort the lines
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2774 * 3: display the list
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2775 */
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2776 mark = ++lastmark;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2777 nomark = ++lastmark;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2778 ga_init2(&ga, (int)sizeof(char *), 20);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2779
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2780 uhp = curbuf->b_u_oldhead;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2781 while (uhp != NULL)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2782 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2783 if (uhp->uh_prev.ptr == NULL && uhp->uh_walk != nomark
777 f664cc974a7a updated for version 7.0227 vimboss parents: 772 diff changeset	2784 && uhp->uh_walk != mark)
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2785 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2786 if (ga_grow(&ga, 1) == FAIL)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2787 break;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2788 vim_snprintf((char *)IObuff, IOSIZE, "%6ld %7ld ",
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2789 uhp->uh_seq, changes);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2790 u_add_time(IObuff + STRLEN(IObuff), IOSIZE - STRLEN(IObuff),
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2791 uhp->uh_time);
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	2792 if (uhp->uh_save_nr > 0)
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	2793 {
2627 fae6fb779a6b updated for version 7.3.048 Bram Moolenaar <bram@vim.org> parents: 2577 diff changeset	2794 while (STRLEN(IObuff) < 33)
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	2795 STRCAT(IObuff, " ");
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	2796 vim_snprintf_add((char *)IObuff, IOSIZE,
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	2797 " %3ld", uhp->uh_save_nr);
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	2798 }
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2799 ((char_u **)(ga.ga_data))[ga.ga_len++] = vim_strsave(IObuff);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2800 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2801
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2802 uhp->uh_walk = mark;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2803
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2804 /* go down in the tree if we haven't been there */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2805 if (uhp->uh_prev.ptr != NULL && uhp->uh_prev.ptr->uh_walk != nomark
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2806 && uhp->uh_prev.ptr->uh_walk != mark)
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2807 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2808 uhp = uhp->uh_prev.ptr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2809 ++changes;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2810 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2811
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2812 /* go to alternate branch if we haven't been there */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2813 else if (uhp->uh_alt_next.ptr != NULL
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2814 && uhp->uh_alt_next.ptr->uh_walk != nomark
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2815 && uhp->uh_alt_next.ptr->uh_walk != mark)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2816 uhp = uhp->uh_alt_next.ptr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2817
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2818 /* go up in the tree if we haven't been there and we are at the
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2819 * start of alternate branches */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2820 else if (uhp->uh_next.ptr != NULL && uhp->uh_alt_prev.ptr == NULL
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2821 && uhp->uh_next.ptr->uh_walk != nomark
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2822 && uhp->uh_next.ptr->uh_walk != mark)
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2823 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2824 uhp = uhp->uh_next.ptr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2825 --changes;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2826 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2827
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2828 else
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2829 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2830 /* need to backtrack; mark this node as done */
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2831 uhp->uh_walk = nomark;
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2832 if (uhp->uh_alt_prev.ptr != NULL)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2833 uhp = uhp->uh_alt_prev.ptr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2834 else
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2835 {
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2836 uhp = uhp->uh_next.ptr;
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2837 --changes;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2838 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2839 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2840 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2841
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2842 if (ga.ga_len == 0)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2843 MSG(_("Nothing to undo"));
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2844 else
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2845 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2846 sort_strings((char_u **)ga.ga_data, ga.ga_len);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2847
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2848 msg_start();
2627 fae6fb779a6b updated for version 7.3.048 Bram Moolenaar <bram@vim.org> parents: 2577 diff changeset	2849 msg_puts_attr((char_u *)_("number changes when saved"),
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	2850 hl_attr(HLF_T));
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2851 for (i = 0; i < ga.ga_len && !got_int; ++i)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2852 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2853 msg_putchar('\n');
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2854 if (got_int)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2855 break;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2856 msg_puts(((char_u **)ga.ga_data)[i]);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2857 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2858 msg_end();
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2859
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2860 ga_clear_strings(&ga);
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2861 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2862 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2863
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2864 /*
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2865 * Put the timestamp of an undo header in "buf[buflen]" in a nice format.
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2866 */
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2867 static void
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2868 u_add_time(buf, buflen, tt)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2869 char_u *buf;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2870 size_t buflen;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2871 time_t tt;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2872 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2873 #ifdef HAVE_STRFTIME
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2874 struct tm *curtime;
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2875
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2876 if (time(NULL) - tt >= 100)
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2877 {
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2878 curtime = localtime(&tt);
2627 fae6fb779a6b updated for version 7.3.048 Bram Moolenaar <bram@vim.org> parents: 2577 diff changeset	2879 if (time(NULL) - tt < (60L * 60L * 12L))
fae6fb779a6b updated for version 7.3.048 Bram Moolenaar <bram@vim.org> parents: 2577 diff changeset	2880 /* within 12 hours */
fae6fb779a6b updated for version 7.3.048 Bram Moolenaar <bram@vim.org> parents: 2577 diff changeset	2881 (void)strftime((char *)buf, buflen, "%H:%M:%S", curtime);
fae6fb779a6b updated for version 7.3.048 Bram Moolenaar <bram@vim.org> parents: 2577 diff changeset	2882 else if (time(NULL) - tt < (60L * 60L * 24L * 180L))
fae6fb779a6b updated for version 7.3.048 Bram Moolenaar <bram@vim.org> parents: 2577 diff changeset	2883 /* within 6 months */
fae6fb779a6b updated for version 7.3.048 Bram Moolenaar <bram@vim.org> parents: 2577 diff changeset	2884 (void)strftime((char *)buf, buflen, "%m/%d %H:%M:%S", curtime);
fae6fb779a6b updated for version 7.3.048 Bram Moolenaar <bram@vim.org> parents: 2577 diff changeset	2885 else
fae6fb779a6b updated for version 7.3.048 Bram Moolenaar <bram@vim.org> parents: 2577 diff changeset	2886 /* long ago */
2689 26fb122355d4 updated for version 7.3.107 Bram Moolenaar <bram@vim.org> parents: 2685 diff changeset	2887 (void)strftime((char *)buf, buflen, "%Y/%m/%d %H:%M:%S", curtime);
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2888 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2889 else
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2890 #endif
835 8bebcabccc2c updated for version 7.0e01 vimboss parents: 825 diff changeset	2891 vim_snprintf((char *)buf, buflen, _("%ld seconds ago"),
772 aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2892 (long)(time(NULL) - tt));
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2893 }
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2894
aaaca5077255 updated for version 7.0226 vimboss parents: 766 diff changeset	2895 /*
697 f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2896 * ":undojoin": continue adding to the last entry list
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2897 */
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2898 void
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2899 ex_undojoin(eap)
2181 f838615313cd updated for version 7.2.441 Bram Moolenaar <bram@vim.org> parents: 2165 diff changeset	2900 exarg_T *eap UNUSED;
697 f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2901 {
839 1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	2902 if (curbuf->b_u_newhead == NULL)
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	2903 return; /* nothing changed before */
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	2904 if (curbuf->b_u_curhead != NULL)
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	2905 {
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	2906 EMSG(_("E790: undojoin is not allowed after undo"));
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	2907 return;
1f3b1021f002 updated for version 7.0e05 vimboss parents: 835 diff changeset	2908 }
697 f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2909 if (!curbuf->b_u_synced)
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2910 return; /* already unsynced */
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2911 if (p_ul < 0)
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2912 return; /* no entries, nothing to do */
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2913 else
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2914 {
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2915 /* Go back to the last entry */
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2916 curbuf->b_u_curhead = curbuf->b_u_newhead;
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2917 curbuf->b_u_synced = FALSE; /* no entries, nothing to do */
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2918 }
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2919 }
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2920
f08390485cd3 updated for version 7.0210 vimboss parents: 692 diff changeset	2921 /*
2394 a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	2922 * Called after writing or reloading the file and setting b_changed to FALSE.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2923 * Now an undo means that the buffer is modified.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2924 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2925 void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2926 u_unchanged(buf)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2927 buf_T *buf;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2928 {
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2929 u_unch_branch(buf->b_u_oldhead);
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2930 buf->b_did_warn = FALSE;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2931 }
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2932
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2933 /*
2482 88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2934 * After reloading a buffer which was saved for 'undoreload': Find the first
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2935 * line that was changed and set the cursor there.
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2936 */
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2937 void
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2938 u_find_first_changed()
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2939 {
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2940 u_header_T *uhp = curbuf->b_u_newhead;
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2941 u_entry_T *uep;
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2942 linenr_T lnum;
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2943
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2944 if (curbuf->b_u_curhead != NULL \|\| uhp == NULL)
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2945 return; /* undid something in an autocmd? */
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2946
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2947 /* Check that the last undo block was for the whole file. */
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2948 uep = uhp->uh_entry;
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2949 if (uep->ue_top != 0 \|\| uep->ue_bot != 0)
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2950 return;
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2951
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2952 for (lnum = 1; lnum < curbuf->b_ml.ml_line_count
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2953 && lnum <= uep->ue_size; ++lnum)
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2954 if (STRCMP(ml_get_buf(curbuf, lnum, FALSE),
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2955 uep->ue_array[lnum - 1]) != 0)
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2956 {
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2957 clearpos(&(uhp->uh_cursor));
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2958 uhp->uh_cursor.lnum = lnum;
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2959 return;
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2960 }
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2961 if (curbuf->b_ml.ml_line_count != uep->ue_size)
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2962 {
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2963 /* lines added or deleted at the end, put the cursor there */
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2964 clearpos(&(uhp->uh_cursor));
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2965 uhp->uh_cursor.lnum = lnum;
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2966 }
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2967 }
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2968
88751831fa0a When undoing a reload, move the cursor to the first changed line. Bram Moolenaar <bram@vim.org> parents: 2410 diff changeset	2969 /*
2281 e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2970 * Increase the write count, store it in the last undo header, what would be
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2971 * used for "u".
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2972 */
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2973 void
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2974 u_update_save_nr(buf)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2975 buf_T *buf;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2976 {
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2977 u_header_T *uhp;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2978
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2979 ++buf->b_u_save_nr_last;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2980 buf->b_u_save_nr_cur = buf->b_u_save_nr_last;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2981 uhp = buf->b_u_curhead;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2982 if (uhp != NULL)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2983 uhp = uhp->uh_next.ptr;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2984 else
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2985 uhp = buf->b_u_newhead;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2986 if (uhp != NULL)
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2987 uhp->uh_save_nr = buf->b_u_save_nr_last;
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2988 }
e41433ea71df Added ":earlier 1f" and ":later 1f". Bram Moolenaar <bram@vim.org> parents: 2280 diff changeset	2989
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2990 static void
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2991 u_unch_branch(uhp)
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2992 u_header_T *uhp;
d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2993 {
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	2994 u_header_T *uh;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2995
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2996 for (uh = uhp; uh != NULL; uh = uh->uh_prev.ptr)
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	2997 {
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	2998 uh->uh_flags \|= UH_CHANGED;
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	2999 if (uh->uh_alt_next.ptr != NULL)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3000 u_unch_branch(uh->uh_alt_next.ptr); /* recursive */
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	3001 }
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3002 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3003
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3004 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3005 * Get pointer to last added entry.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3006 * If it's not valid, give an error message and return NULL.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3007 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3008 static u_entry_T *
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3009 u_get_headentry()
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3010 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3011 if (curbuf->b_u_newhead == NULL \|\| curbuf->b_u_newhead->uh_entry == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3012 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3013 EMSG(_("E439: undo list corrupt"));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3014 return NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3015 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3016 return curbuf->b_u_newhead->uh_entry;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3017 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3018
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3019 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3020 * u_getbot(): compute the line number of the previous u_save
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3021 * It is called only when b_u_synced is FALSE.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3022 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3023 static void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3024 u_getbot()
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3025 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3026 u_entry_T *uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3027 linenr_T extra;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3028
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3029 uep = u_get_headentry(); /* check for corrupt undo list */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3030 if (uep == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3031 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3032
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3033 uep = curbuf->b_u_newhead->uh_getbot_entry;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3034 if (uep != NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3035 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3036 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3037 * the new ue_bot is computed from the number of lines that has been
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3038 * inserted (0 - deleted) since calling u_save. This is equal to the
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3039 * old line count subtracted from the current line count.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3040 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3041 extra = curbuf->b_ml.ml_line_count - uep->ue_lcount;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3042 uep->ue_bot = uep->ue_top + uep->ue_size + 1 + extra;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3043 if (uep->ue_bot < 1 \|\| uep->ue_bot > curbuf->b_ml.ml_line_count)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3044 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3045 EMSG(_("E440: undo line missing"));
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3046 uep->ue_bot = uep->ue_top + 1; /* assume all lines deleted, will
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3047 * get all the old lines back
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3048 * without deleting the current
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3049 * ones */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3050 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3051
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3052 curbuf->b_u_newhead->uh_getbot_entry = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3053 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3054
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3055 curbuf->b_u_synced = TRUE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3056 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3057
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3058 /*
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3059 * Free one header "uhp" and its entry list and adjust the pointers.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3060 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3061 static void
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	3062 u_freeheader(buf, uhp, uhpp)
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	3063 buf_T *buf;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3064 u_header_T *uhp;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3065 u_header_T *uhpp; / if not NULL reset when freeing this header */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3066 {
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3067 u_header_T *uhap;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3068
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3069 /* When there is an alternate redo list free that branch completely,
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3070 * because we can never go there. */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3071 if (uhp->uh_alt_next.ptr != NULL)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3072 u_freebranch(buf, uhp->uh_alt_next.ptr, uhpp);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3073
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3074 if (uhp->uh_alt_prev.ptr != NULL)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3075 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = NULL;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3076
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3077 /* Update the links in the list to remove the header. */
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3078 if (uhp->uh_next.ptr == NULL)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3079 buf->b_u_oldhead = uhp->uh_prev.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3080 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3081 uhp->uh_next.ptr->uh_prev.ptr = uhp->uh_prev.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3082
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3083 if (uhp->uh_prev.ptr == NULL)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3084 buf->b_u_newhead = uhp->uh_next.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3085 else
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3086 for (uhap = uhp->uh_prev.ptr; uhap != NULL;
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3087 uhap = uhap->uh_alt_next.ptr)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3088 uhap->uh_next.ptr = uhp->uh_next.ptr;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3089
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3090 u_freeentries(buf, uhp, uhpp);
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3091 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3092
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3093 /*
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	3094 * Free an alternate branch and any following alternate branches.
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3095 */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3096 static void
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3097 u_freebranch(buf, uhp, uhpp)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3098 buf_T *buf;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3099 u_header_T *uhp;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3100 u_header_T *uhpp; / if not NULL reset when freeing this header */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3101 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3102 u_header_T tofree, next;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3103
1440 93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	3104 /* If this is the top branch we may need to use u_freeheader() to update
93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	3105 * all the pointers. */
93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	3106 if (uhp == buf->b_u_oldhead)
93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	3107 {
93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	3108 u_freeheader(buf, uhp, uhpp);
93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	3109 return;
93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	3110 }
93ffa40b5320 updated for version 7.1-155 vimboss parents: 1415 diff changeset	3111
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3112 if (uhp->uh_alt_prev.ptr != NULL)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3113 uhp->uh_alt_prev.ptr->uh_alt_next.ptr = NULL;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3114
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3115 next = uhp;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3116 while (next != NULL)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3117 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3118 tofree = next;
2242 bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3119 if (tofree->uh_alt_next.ptr != NULL)
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3120 u_freebranch(buf, tofree->uh_alt_next.ptr, uhpp); /* recursive */
bc4685345719 Don't use pointers to store numbers, use a union. Bram Moolenaar <bram@vim.org> parents: 2239 diff changeset	3121 next = tofree->uh_prev.ptr;
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3122 u_freeentries(buf, tofree, uhpp);
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3123 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3124 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3125
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3126 /*
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3127 * Free all the undo entries for one header and the header itself.
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3128 * This means that "uhp" is invalid when returning.
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3129 */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3130 static void
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3131 u_freeentries(buf, uhp, uhpp)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3132 buf_T *buf;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3133 u_header_T *uhp;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3134 u_header_T *uhpp; / if not NULL reset when freeing this header */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3135 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3136 u_entry_T uep, nuep;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3137
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3138 /* Check for pointers to the header that become invalid now. */
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3139 if (buf->b_u_curhead == uhp)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3140 buf->b_u_curhead = NULL;
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3141 if (buf->b_u_newhead == uhp)
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3142 buf->b_u_newhead = NULL; /* freeing the newest entry */
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3143 if (uhpp != NULL && uhp == *uhpp)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3144 *uhpp = NULL;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3145
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3146 for (uep = uhp->uh_entry; uep != NULL; uep = nuep)
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3147 {
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3148 nuep = uep->ue_next;
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3149 u_freeentry(uep, uep->ue_size);
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3150 }
ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3151
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3152 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3153 uhp->uh_magic = 0;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3154 #endif
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	3155 vim_free((char_u *)uhp);
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	3156 --buf->b_u_numhead;
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3157 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3158
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3159 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3160 * free entry 'uep' and 'n' lines in uep->ue_array[]
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3161 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3162 static void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3163 u_freeentry(uep, n)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3164 u_entry_T *uep;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3165 long n;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3166 {
414 8ab9c77240d4 updated for version 7.0108 vimboss parents: 407 diff changeset	3167 while (n > 0)
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	3168 vim_free(uep->ue_array[--n]);
290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	3169 vim_free((char_u *)uep->ue_array);
1415 20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3170 #ifdef U_DEBUG
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3171 uep->ue_magic = 0;
20b52d44daaf updated for version 7.1-130 vimboss parents: 1210 diff changeset	3172 #endif
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	3173 vim_free((char_u *)uep);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3174 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3175
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3176 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3177 * invalidate the undo buffer; called when storage has already been released
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3178 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3179 void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3180 u_clearall(buf)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3181 buf_T *buf;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3182 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3183 buf->b_u_newhead = buf->b_u_oldhead = buf->b_u_curhead = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3184 buf->b_u_synced = TRUE;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3185 buf->b_u_numhead = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3186 buf->b_u_line_ptr = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3187 buf->b_u_line_lnum = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3188 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3189
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3190 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3191 * save the line "lnum" for the "U" command
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3192 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3193 void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3194 u_saveline(lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3195 linenr_T lnum;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3196 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3197 if (lnum == curbuf->b_u_line_lnum) /* line is already saved */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3198 return;
356 0f2b5d1b8117 updated for version 7.0092 vimboss parents: 344 diff changeset	3199 if (lnum < 1 \|\| lnum > curbuf->b_ml.ml_line_count) /* should never happen */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3200 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3201 u_clearline();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3202 curbuf->b_u_line_lnum = lnum;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3203 if (curwin->w_cursor.lnum == lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3204 curbuf->b_u_line_colnr = curwin->w_cursor.col;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3205 else
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3206 curbuf->b_u_line_colnr = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3207 if ((curbuf->b_u_line_ptr = u_save_line(lnum)) == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3208 do_outofmem_msg((long_u)0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3209 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3210
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3211 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3212 * clear the line saved for the "U" command
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3213 * (this is used externally for crossing a line while in insert mode)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3214 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3215 void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3216 u_clearline()
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3217 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3218 if (curbuf->b_u_line_ptr != NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3219 {
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	3220 vim_free(curbuf->b_u_line_ptr);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3221 curbuf->b_u_line_ptr = NULL;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3222 curbuf->b_u_line_lnum = 0;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3223 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3224 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3225
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3226 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3227 * Implementation of the "U" command.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3228 * Differentiation from vi: "U" can be undone with the next "U".
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3229 * We also allow the cursor to be in another line.
2289 3331756e4232 Make synstack() work on the character just after the end of the line. Bram Moolenaar <bram@vim.org> parents: 2288 diff changeset	3230 * Careful: may trigger autocommands that reload the buffer.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3231 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3232 void
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3233 u_undoline()
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3234 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3235 colnr_T t;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3236 char_u *oldp;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3237
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3238 if (undo_off)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3239 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3240
1534 bdfbf8ef447a updated for version 7.1-249 vimboss parents: 1440 diff changeset	3241 if (curbuf->b_u_line_ptr == NULL
bdfbf8ef447a updated for version 7.1-249 vimboss parents: 1440 diff changeset	3242 \|\| curbuf->b_u_line_lnum > curbuf->b_ml.ml_line_count)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3243 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3244 beep_flush();
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3245 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3246 }
1534 bdfbf8ef447a updated for version 7.1-249 vimboss parents: 1440 diff changeset	3247
bdfbf8ef447a updated for version 7.1-249 vimboss parents: 1440 diff changeset	3248 /* first save the line for the 'u' command */
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3249 if (u_savecommon(curbuf->b_u_line_lnum - 1,
2394 a3aca345aafa Add the 'undoreload' option to be able to undo a file reload. Bram Moolenaar <bram@vim.org> parents: 2378 diff changeset	3250 curbuf->b_u_line_lnum + 1, (linenr_T)0, FALSE) == FAIL)
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3251 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3252 oldp = u_save_line(curbuf->b_u_line_lnum);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3253 if (oldp == NULL)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3254 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3255 do_outofmem_msg((long_u)0);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3256 return;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3257 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3258 ml_replace(curbuf->b_u_line_lnum, curbuf->b_u_line_ptr, TRUE);
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3259 changed_bytes(curbuf->b_u_line_lnum, 0);
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	3260 vim_free(curbuf->b_u_line_ptr);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3261 curbuf->b_u_line_ptr = oldp;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3262
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3263 t = curbuf->b_u_line_colnr;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3264 if (curwin->w_cursor.lnum == curbuf->b_u_line_lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3265 curbuf->b_u_line_colnr = curwin->w_cursor.col;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3266 curwin->w_cursor.col = t;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3267 curwin->w_cursor.lnum = curbuf->b_u_line_lnum;
1534 bdfbf8ef447a updated for version 7.1-249 vimboss parents: 1440 diff changeset	3268 check_cursor_col();
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3269 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3270
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3271 /*
168 4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	3272 * Free all allocated memory blocks for the buffer 'buf'.
4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	3273 */
4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	3274 void
4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	3275 u_blockfree(buf)
4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	3276 buf_T *buf;
4d9eabb1396e updated for version 7.0051 vimboss parents: 33 diff changeset	3277 {
753 ac005a544e24 updated for version 7.0223 vimboss parents: 697 diff changeset	3278 while (buf->b_u_oldhead != NULL)
758 d591d4ceeaee updated for version 7.0224 vimboss parents: 753 diff changeset	3279 u_freeheader(buf, buf->b_u_oldhead, NULL);
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	3280 vim_free(buf->b_u_line_ptr);
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3281 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3282
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3283 /*
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	3284 * u_save_line(): allocate memory and copy line 'lnum' into it.
290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	3285 * Returns NULL when out of memory.
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3286 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3287 static char_u *
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3288 u_save_line(lnum)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3289 linenr_T lnum;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3290 {
2230 290ee42cae85 Remove old and unused method to allocate memory for undo. Bram Moolenaar <bram@vim.org> parents: 2229 diff changeset	3291 return vim_strsave(ml_get(lnum));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3292 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3293
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3294 /*
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3295 * Check if the 'modified' flag is set, or 'ff' has changed (only need to
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3296 * check the first character, because it can only be "dos", "unix" or "mac").
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3297 * "nofile" and "scratch" type buffers are considered to always be unchanged.
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3298 */
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3299 int
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3300 bufIsChanged(buf)
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3301 buf_T *buf;
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3302 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3303 return
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3304 #ifdef FEAT_QUICKFIX
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3305 !bt_dontwrite(buf) &&
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3306 #endif
2685 862d920800b1 updated for version 7.3.103 Bram Moolenaar <bram@vim.org> parents: 2666 diff changeset	3307 (buf->b_changed \|\| file_ff_differs(buf, TRUE));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3308 }
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3309
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3310 int
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3311 curbufIsChanged()
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3312 {
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3313 return
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3314 #ifdef FEAT_QUICKFIX
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3315 !bt_dontwrite(curbuf) &&
3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3316 #endif
2685 862d920800b1 updated for version 7.3.103 Bram Moolenaar <bram@vim.org> parents: 2666 diff changeset	3317 (curbuf->b_changed \|\| file_ff_differs(curbuf, TRUE));
7 3fc0f57ecb91 updated for version 7.0001 vimboss parents: diff changeset	3318 }
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3319
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3320 #if defined(FEAT_EVAL) \|\| defined(PROTO)
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3321 /*
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3322 * For undotree(): Append the list of undo blocks at "first_uhp" to "list".
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3323 * Recursive.
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3324 */
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3325 void
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3326 u_eval_tree(first_uhp, list)
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3327 u_header_T *first_uhp;
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3328 list_T *list;
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3329 {
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3330 u_header_T *uhp = first_uhp;
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3331 dict_T *dict;
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3332
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3333 while (uhp != NULL)
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3334 {
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3335 dict = dict_alloc();
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3336 if (dict == NULL)
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3337 return;
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3338 dict_add_nr_str(dict, "seq", uhp->uh_seq, NULL);
2282 a888ed7ba375 Make updating text for conceal mode simpler. A few compiler warning fixes. Bram Moolenaar <bram@vim.org> parents: 2281 diff changeset	3339 dict_add_nr_str(dict, "time", (long)uhp->uh_time, NULL);
2280 941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3340 if (uhp == curbuf->b_u_newhead)
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3341 dict_add_nr_str(dict, "newhead", 1, NULL);
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3342 if (uhp == curbuf->b_u_curhead)
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3343 dict_add_nr_str(dict, "curhead", 1, NULL);
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3344 if (uhp->uh_save_nr > 0)
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3345 dict_add_nr_str(dict, "save", uhp->uh_save_nr, NULL);
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3346
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3347 if (uhp->uh_alt_next.ptr != NULL)
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3348 {
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3349 list_T *alt_list = list_alloc();
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3350
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3351 if (alt_list != NULL)
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3352 {
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3353 /* Recursive call to add alternate undo tree. */
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3354 u_eval_tree(uhp->uh_alt_next.ptr, alt_list);
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3355 dict_add_list(dict, "alt", alt_list);
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3356 }
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3357 }
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3358
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3359 list_append_dict(list, dict);
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3360 uhp = uhp->uh_prev.ptr;
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3361 }
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3362 }
941ff1cd317a Add file save counter to undo information. Add undotree() function. Bram Moolenaar <bram@vim.org> parents: 2271 diff changeset	3363 #endif

Mercurial > vim

annotate src/undo.c @ 3147:7ba2f171cdac v7.3.344